Evo 4g LTE Car Stereo Idea - Sprint HTC EVO 4G LTE

Ok, so I have an old evo 4g lte lying around and I have a few ideas for it. One of them is to turn it into a car stereo.
I want to basically make it power on when the car turns on by removing the battery and connecting it directly to vehicle power via USB - and stick it to the dashboard of the car to use as a music player. I would like to be able to use google play music (in conjunction with the wifi hotspot on my new Nexus 4 or possibly just with the onboard music on the 32gb microSD card.)
A few issues I see as potentially problematic - the OS boot times. the headphone jack puts out weak signal so I plan to use a bluetooth connection to the radio. I may want to use the phone in the house. It may get stolen.
Anyway, has anybody done anything like this before? I have an old HP Touchpad that I might like to use for a head unit at some point as well. Android is pretty cool.
It might be feasible using a battery but the issue I've seen with that is that the charge it occasionally gets from the car when it's powered on is not enough to keep the phone always going, hence it will eventually go dead and require removal for charging - limiting mounting options to something where it's easy to remove - which is not a good thing for the Touchpad, as it is too big to just stick somewhere.
I hope this was an OK place to drop this. LMK what you think.

richard head said:
Ok, so I have an old evo 4g lte lying around and I have a few ideas for it. One of them is to turn it into a car stereo.
I want to basically make it power on when the car turns on by removing the battery and connecting it directly to vehicle power via USB - and stick it to the dashboard of the car to use as a music player. I would like to be able to use google play music (in conjunction with the wifi hotspot on my new Nexus 4 or possibly just with the onboard music on the 32gb microSD card.)
A few issues I see as potentially problematic - the OS boot times. the headphone jack puts out weak signal so I plan to use a bluetooth connection to the radio. I may want to use the phone in the house. It may get stolen.
Anyway, has anybody done anything like this before? I have an old HP Touchpad that I might like to use for a head unit at some point as well. Android is pretty cool.
It might be feasible using a battery but the issue I've seen with that is that the charge it occasionally gets from the car when it's powered on is not enough to keep the phone always going, hence it will eventually go dead and require removal for charging - limiting mounting options to something where it's easy to remove - which is not a good thing for the Touchpad, as it is too big to just stick somewhere.
I hope this was an OK place to drop this. LMK what you think.
Click to expand...
Click to collapse
Not with an Evo, but below is a link to a build using the Galaxy Tab 7 in a NBS Yukon/Tahoe/Suburban. This can be adapted to fit many vehicles with proper planning. Options to customize/fabricate are endless.
Yukon G Tab 7 Build

By the time u got that all built-up, you could have bought a $40 head unit and used the usb jack to play all your music, etc.
Sent from my EVO using xda app-developers app

iandmacdonald said:
By the time u got that all built-up, you could have bought a $40 head unit and used the usb jack to play all your music, etc.
Sent from my EVO using xda app-developers app
Click to expand...
Click to collapse
But the coolness factor wouldn't be there lol
Sent from my EVO using XDA Premium 4 mobile app

seconds kershom
I would probably go with a small tab I think they actually make them for double din applications

I was able to go 2 days on one charge with my evo lte. I would think it would be fine. Especially if it's on airplane mode and not syncing in the background all day and night. And I would go from the headphone jack to car stereo amp(s). I have considered this multiple times with the intentions of using an older android tab.

Good point on airplane mode for sure!!

Related

evo 3d on a pioneer avic z120 bt

Hello all. I am wondering if anyone can help me. I recently installed a head unit ( pioneer avic z120 by) and i notice that one way to play music of the phone is to connect it via Bluetooth. I did that method and the sound quality sucks. Do anyone know of any other way to listen music from the phone and controlled it on the z120 instead of just changing it on the phone.
Also when the phone is on usb mode can I receive calls / text / charge......
i just use the usb and not bt for music. or now i use a 32gb flash drive with music. that why it also keep my songs in the same place.
thats on both z120s and a z90
bluetooth just sounds bad in general and will drain ur batt likeno other.
ur settings on ur deck might b off cause plugging ur phone in by usb should b fine
Sent from my PG86100 using Tapatalk
I have the exact same head unit in one of my cars. It has sounded awesome since the day I installed it. Worked perfect with my Evo 4G and now also with my 3D. Whether playing my MP3's, Pandora, YouTube, or whatever, it never decreases sound quality. That's really weird about yours. Radio, cd's, DVD's, and everything else sound good?
Oh, my iPod Touch sounds the same whether using my iPod cable I bought and ran from the back of the head unit or using bluetooth....
Sent from my PG86100 using XDA App
I just use the headphone jack. I only have that option right now, but it would still be my first choice. I've generally heard BT comes out rather unimpressive.
As for USB mode, it does allow you to place/receive calls and text messages. However, for obvious reasons, you wouldn't have access to the sdcard
i actually bought a FM transmitter from walmart for 12 bucks and it works VERY well great quality the only thing i have noticed is you must find the right station for your radio i use 107.7 and it works well for me but play around with them and see which one works best for you and don't turn your phone all the way up usually 2-4 clicks from max volume works well. hope that helps i know i love mine and ive been using it since my evo 4g and works equally well on my 3vo
My buddy use's an bluetooth speaker/fm transmitter, works well.
downside is..can't control the music from the radio/steering controls/remote etc
Check and see if there is a firmware update for your headunit
all else fails..put it closer to the radio Doh!
use usb or the 3.5mm head phone jack
Sent from my PG86100 using Tapatalk
xenx said:
I just use the headphone jack. I only have that option right now, but it would still be my first choice. I've generally heard BT comes out rather unimpressive.
As for USB mode, it does allow you to place/receive calls and text messages. However, for obvious reasons, you wouldn't have access to the sdcard
Click to expand...
Click to collapse
This is what you will have to do to get better quality. BT does degrade the quality of the sound produced by your phone.

Samsung HS3000 Bluetooth Review (HTC Stereo Clip alternative)

Product links:
http://www.amazon.com/Samsung-Stereo-Clip-On-Bluetooth-Headset/dp/B0057WWK5E
http://www.newegg.com/Product/Product.aspx?Item=N82E16875982446
High Resolution Image Gallery (Close up of buttons, and dimensions): http://imgur.com/a/b5HyR#0
In short, at half the price of the HTC Stereo Clip, I don't see why you would buy anything else. (A simple male to male adapter and it'll plug into your head unit just the same.)
Audio Quality: It's great! The new APT-X codec(?) is awesome. It would take a double blind hearing test for me to tell the difference between the Samsung and a wire. Can you tell? Maybe, but requiring a double blind test is good enough for me in my car.
Note: I have the bluetooth feeding directly into an amplifier that feeds my speakers. I no longer have a headunit.
For me, there are so many benefits of this unit vs the Stereo Clip.
Less than half the cost ! ($30 vs $70 for HTC Clip)
I can plug ANY set of headphones into the bluetooth and have "wireless" headphones
Has a built in mic, so I can answer calls with it in the car or out
Great battery life
Comes with a nice pair of short corded ear buds that have decent sound isolation as well
A minor gripe: If you look at the photos, the buttons are really small with no tactile differentiation. I always have to look at it to figure out what side I'm going push. It would have been so easy to make one side have some tactile difference.
Nice review!!! I just received mine yesterday and I love it as well. Definitely worth 30 bucks. Agree with everything you posted!
Sent from my EVO using xda premium
Ordered mine earlier today! Looks like I made a good choice....now I got to go set up some new Tasker profiles
can you pair two devices to this thing (i.e. ELTE for me and 4S for my wife)?
I'm looking for an a2dp adapter to do a fixed install inside my car. Can I leave this hooked up to a usb power source constantly and hide the reciever in my armrest? Also is there any problem using these for a2dp only and using my car's built in hands free?
donatom3 said:
I'm looking for an a2dp adapter to do a fixed install inside my car. Can I leave this hooked up to a usb power source constantly and hide the reciever in my armrest? Also is there any problem using these for a2dp only and using my car's built in hands free?
Click to expand...
Click to collapse
I would be interested to know if it would automatically power on or stay on for a fix car install. If you just want a2dp fixed install, check out the isimple isfm21. It does hard wired fm modulation or rca line out and has an Android app to change fm frequency.
Ph33zy said:
can you pair two devices to this thing (i.e. ELTE for me and 4S for my wife)?
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Click to collapse
I don't see why not. In fact, it supports two simultaneous connections as well (if the devices support it).
donatom3 said:
I'm looking for an a2dp adapter to do a fixed install inside my car. Can I leave this hooked up to a usb power source constantly and hide the reciever in my armrest?
Click to expand...
Click to collapse
dmacias said:
I would be interested to know if it would automatically power on or stay on for a fix car install.
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Click to collapse
I have mine hooked up in a sort of fixed install. I have a USB and 3.5 mm cord running through my dash up to my sun visor where the Adapter sits, I was also going to do a totally fixed hidden install, but that would have hidden the built-in mic negating the hands free calling functionality. As long as your armrest isn't surrounded in metal (blocking the bluetooth signal), you should be fine. I briefly had it in my center console to test and it worked fine, then I realized, hey I won't be able to use the mic if I do that.
My USB is hooked up to a secondary cigarette socket I installed that is only live when the ignition is on. You definitely could leave it hooked up to a constant power source, but I don't know what that would do to the battery over time (the bluetooth battery and your car battery). I've decided to play it safe and not kill the battery. Having said that, if it's permanent, it shouldn't be an issue even if the bluetooth battery stops taking a charge. I've seen laptops that have dead batteries, but ppl are able to still use them plugged in.
It doesn't turn on and off automatically, so here it may be different from the StereoClip (I don't have a StereoClip so I don't know). It does work while hooked up to power so you could leave it on all the time as mentioned above. I turn mine off although I did forget one time and left it on, no biggie since it's connected to power. I'm going to set up a tasker profile to remind me to turn it off.
Also is there any problem using these for a2dp only and using my car's built in hands free?
Click to expand...
Click to collapse
I don't know. I do know that it supports a2dp, and it supports two simultaneous bluetooth connections if the devices support it to play music, but I'm not sure how that works with calls and whether or not it would try to play the music through your car's hands free system and whatever you have plugged.
I've never had a car built in hands free system so I don't know how that works. There's a small section in the manual about simultaneous bluetooth connections if you want to try and find the manual online.
couragedragon said:
I don't see why not. In fact, it supports two simultaneous connections as well (if the devices support it).
I have mine hooked up in a sort of fixed install. I have a USB and 3.5 mm cord running through my dash up to my sun visor where the Adapter sits, I was also going to do a totally fixed hidden install, but that would have hidden the built-in mic negating the hands free calling functionality. As long as your armrest isn't surrounded in metal (blocking the bluetooth signal), you should be fine. I briefly had it in my center console to test and it worked fine, then I realized, hey I won't be able to use the mic if I do that.
My USB is hooked up to a secondary cigarette socket I installed that is only live when the ignition is on. You definitely could leave it hooked up to a constant power source, but I don't know what that would do to the battery over time (the bluetooth battery and your car battery). I've decided to play it safe and not kill the battery. Having said that, if it's permanent, it shouldn't be an issue even if the bluetooth battery stops taking a charge. I've seen laptops that have dead batteries, but ppl are able to still use them plugged in.
It doesn't turn on and off automatically, so here it may be different from the StereoClip (I don't have a StereoClip so I don't know). It does work while hooked up to power so you could leave it on all the time as mentioned above. I turn mine off although I did forget one time and left it on, no biggie since it's connected to power. I'm going to set up a tasker profile to remind me to turn it off.
I don't know. I do know that it supports a2dp, and it supports two simultaneous bluetooth connections if the devices support it to play music, but I'm not sure how that works with calls and whether or not it would try to play the music through your car's hands free system and whatever you have plugged.
I've never had a car built in hands free system so I don't know how that works. There's a small section in the manual about simultaneous bluetooth connections if you want to try and find the manual online.
Click to expand...
Click to collapse
Sweet man.. I just bought one based on your review. Do you think you can take a picture of your setup?
I purchased one too, along with a whole host of cables to do a permanent hidden installation.
My only fear is leaving it on all of the time, only charging when I am in the vehicle. Hopefully it has a "standby" mode to conserve power when the power switch is on but nothing is connected.
OP, I won't get mine until Tuesday, is there anyway you can test a permanent always-on installation like I'm talking about by seeing how yours does leaving the power switch on for a day or so?
The tech specs list a 130hour standby battery life. Should be more then enough when the car is not moving. my delema is that I cant find any decent Y adapters to split my one usb socket in my car into 2, But that is another story.
Ph33zy said:
Sweet man.. I just bought one based on your review. Do you think you can take a picture of your setup?
Click to expand...
Click to collapse
Sure, will post some tonight
modplan said:
OP, I won't get mine until Tuesday, is there anyway you can test a permanent always-on installation like I'm talking about by seeing how yours does leaving the power switch on for a day or so?
Click to expand...
Click to collapse
Not really, I use it all the time in and out of the car everyday so I'm always charging it to make sure it's topped off. Sorry man.
I did leave it on overnight once and it was fine.
Sent from my EVO LTE w/ TapaTalk 2
texanman said:
The tech specs list a 130hour standby battery life. Should be more then enough when the car is not moving. my delema is that I cant find any decent Y adapters to split my one usb socket in my car into 2, But that is another story.
Click to expand...
Click to collapse
Right, but does standby mean power switch is off, or power switch is on but nothing connected?
I just bought this little guy to do the splitting and will install it behind my dash where I already have the wires to my dock run.
http://www.monoprice.com/products/p...=10307&cs_id=1030702&p_id=6631&seq=1&format=2
I couldn't find a simple y splitter either, that wasn't 32 feet long....
[
I just bought this little guy to do the splitting and will install it behind my dash where I already have the wires to my dock run.<br />
<br />
http://www.monoprice.com/products/p...=10307&cs_id=1030702&p_id=6631&seq=1&format=2<br />
<br />
I couldn't find a simple y splitter either, that wasn't 32 feet long....
Click to expand...
Click to collapse
My concern with that is it'll only charge your phone in USB mode which isn't enough when using navigation with the screen on.
I ended up getting a dual USB adapter that charged in AC mode and running two usb cords.
Sent from EVO LTE w/ TapaTalk 2
couragedragon said:
My concern with that is it'll only charge your phone in USB mode which isn't enough when using navigation with the screen on.
I ended up getting a dual USB adapter that charged in AC mode and running two usb cords.
Sent from EVO LTE w/ TapaTalk 2
Click to expand...
Click to collapse
If you have the car dock, it forces AC mode, as long as your charger has enough current (at least 1A).
My charger is 2.1A, the bluetooth will probably pull 500mA and the phone will pull 1A, so in my case (with the dock) the hub should work fine, and will look a lot cleaner with only one cord running from my cigarette lighter to behind my dash.
But to each their own. I'll take pics of my setup on Tuesday.
Ph33zy said:
Sweet man.. I just bought one based on your review. Do you think you can take a picture of your setup?
Click to expand...
Click to collapse
I haven't made it pretty yet. I usually run my stuff for several weeks before I shore up all the wires and hide everything behind the dash properly and make a custom plate to cover up the head unit opening and paint the L Bracket I used black.
http://imgur.com/a/igJgN#6
modplan said:
If you have the car dock, it forces AC mode, as long as your charger has enough current (at least 1A).
My charger is 2.1A, the bluetooth will probably pull 500mA and the phone will pull 1A, so in my case (with the dock) the hub should work fine, and will look a lot cleaner with only one cord running from my cigarette lighter to behind my dash.
But to each their own. I'll take pics of my setup on Tuesday.
Click to expand...
Click to collapse
You know what, at first I was like NUH UH! And then I remembered, the first dock I got didn't do that AND it eventually stopped working (charging) and I had to exchange it for another one. So it was probably faulty. Good to know. Thanks for the heads up.
What's the range on this device? Sometimes I don't have good signal in the office so I have to leave it by a window. Usually no more than 20-30 feet away. Wanted to know cause I like to stream Pandora usually all day while I walk around the office.
Sent from my EVO using Tapatalk 2 Beta-5
dwiz06 said:
What's the range on this device? Sometimes I don't have good signal in the office so I have to leave it by a window. Usually no more than 20-30 feet away. Wanted to know cause I like to stream Pandora usually all day while I walk around the office.
Sent from my EVO using Tapatalk 2 Beta-5
Click to expand...
Click to collapse
I've found that the Bluetooth signal is very dependant on a variety of factors. You'll likely be on the edge of its range though.
For example, in my house I've been 20ish feet away and it works fine, but if go in a certain corner with a bunch of appliances it gets crackly.
I've also parked directly in front of a strip mall store and gone inside easily 30 feet with no issues.
Sent from EVO LTE w/ TapaTalk 2
I'm glad to have found this seeing as how the HTC stereoclip does NOT route your phone calls, when a phone call comes in it mites the music and it will use the speaker on the phone nut your car speakers. It only routs music. Which seems incredibly dumb to me. But I suppose HTC has to sell you another blue tooth device to take phone calls.
Sent from my EVO using Tapatalk 2
Freelancerx said:
I'm glad to have found this seeing as how the HTC stereoclip does NOT route your phone calls, when a phone call comes in it mites the music and it will use the speaker on the phone nut your car speakers. It only routs music. Which seems incredibly dumb to me. But I suppose HTC has to sell you another blue tooth device to take phone calls.
Sent from my EVO using Tapatalk 2
Click to expand...
Click to collapse
Probably because they couldn't be bothered to also lower the phone stream's volume and if they had a mic on the device it would just pick up the other person's voice from the car speakers and it would be a whole bucket of echoes without active noise cancellation.
I got mine, and I have to say it sounds fantastic. I have it in my "fixed" install. basically I have it plugged into a cigarette lighter that turns off with the car, and the audio is running under my console to the backside of my radio.
With the HTC car dock, my phone connects to my factory bluetooth handsfree for phone calls, and the Samsung for music, and standard audio, such as nav.
Only problem I have is it stays on when the power is off which means my phone stays connected when I go into my house.
I am considering cutting the battery wire on the inside to solve that issue.

Discovery about headphone noise (humming)

I looked and didn't see anything about this, so forgive me if it's been posted already.
I noticed, like a lot of people, the annoying humming that this phone makes when you listen to music (for me most apparent when I have it hooked to my car stereo) but I was listening to music with a portable speaker, speaker connected to my LAPTOP (not the phone), and I moved the phone close to where the 3.5mm plugs into the laptop, and I heard the same buzzing sound. 0__0 ... So I think the humming is coming from some one of the wireless radios.. not sure which one, but after a few seconds, it wouldn't hum anymore, which means the radio must have shut off...
Again, forgive me if this is already known information, but if it isn't ... this may help some people, maybe the GPS radio causes the noise?? or Wifi??
x70xchallengerx said:
I looked and didn't see anything about this, so forgive me if it's been posted already.
I noticed, like a lot of people, the annoying humming that this phone makes when you listen to music (for me most apparent when I have it hooked to my car stereo) but I was listening to music with a portable speaker, speaker connected to my LAPTOP (not the phone), and I moved the phone close to where the 3.5mm plugs into the laptop, and I heard the same buzzing sound. 0__0 ... So I think the humming is coming from some one of the wireless radios.. not sure which one, but after a few seconds, it wouldn't hum anymore, which means the radio must have shut off...
Again, forgive me if this is already known information, but if it isn't ... this may help some people, maybe the GPS radio causes the noise?? or Wifi??
Click to expand...
Click to collapse
yeah its the 4G LTE radio. it makes your speakers make weird crazy signal noises when it's too close, too, just like the old GSM flip phones did back in the day
earthrocker said:
yeah its the 4G LTE radio. it makes your speakers make weird crazy signal noises when it's too close, too, just like the old GSM flip phones did back in the day
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Click to collapse
Yep found that out on day one. Switch to wi-fi or turn off data and all will be well. If you're streaming in the car, I barely notice it with the music turned up. Droid Charge didn't have this problem, but it also didn't have an amplified headphone jack. I had to turn my car radio up way higher than my iPod with that phone, not the case with this one.
Homestar1217 said:
Yep found that out on day one. Switch to wi-fi or turn off data and all will be well. If you're streaming in the car, I barely notice it with the music turned up. Droid Charge didn't have this problem, but it also didn't have an amplified headphone jack. I had to turn my car radio up way higher than my iPod with that phone, not the case with this one.
Click to expand...
Click to collapse
You've got to be kidding me... That is nuts, and that buzzing drives me absolutely CRAZY! I noticed something that with my Beats over ears, every time I touched the screen the buzzing would start, couple seconds it would go away. I put the phone into airplane mode and presto, all the buzzing was gone! Verizon HAS to do something about this, it makes the headphone jack virtual unusable!
HTC Is Aware Now
So after getting my second device from Verizon with the same issue I was finally transfered over to HTC. After an hour conversation and then some back and forth emails HTC is now aware! Very exciting as this issue has been bugging me for a while. They have now replicated the issue and are going to begin work on a fix!
Email From HTC said:
Thank you for the information. Unfortunately, it did not take me long to test the issue and replicate it with my personal device. I use in-ear ear buds and will be forwarding this to our corporate office in the morning so that we may complete some additional testing on the team and hopefully find a permanent resolution. I appreciate you bringing this to my attention.
Click to expand...
Click to collapse
wingman1487 said:
So after getting my second device from Verizon with the same issue I was finally transfered over to HTC. After an hour conversation and then some back and forth emails HTC is now aware! Very exciting as this issue has been bugging me for a while. They have now replicated the issue and are going to begin work on a fix!
Click to expand...
Click to collapse
Though not sure how exactly they could fix this without a hardware change. Rezound had same issue.
Sent from my HTC6435LVW using xda premium
Anyone try a Ferrite Split Core? Not sure if it would help but if you have one sitting around it would be worth a try. Just wrap your audio cable through it a few times, worth a shot. Maybe two one at each end. See attached image.
I've run into this myself, however.....the humming does go away on it's own after a few seconds even when I'm downloading a large file over LTE....that tells me that while it still may be a hardware issue, they likely have filters in place that the software isn't triggering in a timely fashion. So it's possible it could be fixed in software.
beaups said:
I've run into this myself, however.....the humming does go away on it's own after a few seconds even when I'm downloading a large file over LTE....that tells me that while it still may be a hardware issue, they likely have filters in place that the software isn't triggering in a timely fashion. So it's possible it could be fixed in software.
Click to expand...
Click to collapse
Am I the only one who did not have that problem? Or have I just not really noticed it. Ill check next time I listen to music
Sent from my HTC6435LVW using xda app-developers app
Homestar1217 said:
Droid Charge didn't have this problem
Click to expand...
Click to collapse
It definitely did. Both this phone and my Charge make my computer speakers buzz.
wingman1487 said:
So after getting my second device from Verizon with the same issue I was finally transfered over to HTC. After an hour conversation and then some back and forth emails HTC is now aware! Very exciting as this issue has been bugging me for a while. They have now replicated the issue and are going to begin work on a fix!
Click to expand...
Click to collapse
Did you ever hear anything more on this? I listen using quite sensitive molded ear buds, and am considering returning the phone. What good is an expensive media device that sounds like a lumber mill?
phillipdhall said:
Did you ever hear anything more on this? I listen using quite sensitive molded ear buds, and am considering returning the phone. What good is an expensive media device that sounds like a lumber mill?
Click to expand...
Click to collapse
If you're using expensive IEMs, why are you driving them with the built-in amp? You need to use an external amp and use a player like Neutron MP to line-out to it.
Sent from my HTC6435LVW using xda app-developers app
Argumentation said:
If you're using expensive IEMs, why are you driving them with the built-in amp? You need to use an external amp and use a player like Neutron MP to line-out to it.
Click to expand...
Click to collapse
Thank you! I have considered picking up an external USB DAC. Can you confirm that the stock ROM will support it, and are there compatibility concerns with specific DACs? I'm not an audio engineer any more, so I can't justify spending much...
phillipdhall said:
Thank you! I have considered picking up an external USB DAC. Can you confirm that the stock ROM will support it, and are there compatibility concerns with specific DACs? I'm not an audio engineer any more, so I can't justify spending much...
Click to expand...
Click to collapse
The E17 is a great USB DAC, if that's too expensive, the E7 is a good alternative. You can use an OTG cable and do USB audio, or line out using Neutron. :good:
Sent from my HTC6435LVW using xda app-developers app
I turn off sync when I listen to music and it does the trick. But I also keep sync turned off when I'm not on WiFi so its not really a big deal.
Sent from my HTC6435LVW using Tapatalk 2
It's not the LTE radio causing it. LTE does not use TDMA (time division multiple access, as opposed to CDMA) as in traditional GSM. It uses a different form of signal transmission called OFDMA (orthogonal frequency division multiple access) which is continuous transmission like CDMA, which does not make speakers buzz. Most of the cause of this is the circuit being closely tuned with the flow of power in and out of the battery. If you plug in the phone to charge while using the headphone jack, it should be even louder and more apparent.
A quick fix for this is to put whatever you're using through a noise filter. This one is only $10 on amazon and is better for those listening through speakers rather than headphones. As for me, I don't really hear it much on my phone unless its plugged in, in which this little filter fixes the issue.
Berzerker7 said:
It's not the LTE radio causing it. LTE does not use TDMA (time division multiple access, as opposed to CDMA) as in traditional GSM. It uses a different form of signal transmission called OFMDA (orthogonal frequency division multiple access) which is continuous transmission like CDMA, which does not make speakers buzz. Most of the cause of this is the circuit being closely tuned with the flow of power in and out of the battery. If you plug in the phone to charge while using the headphone jack, it should be even louder and more apparent.
A quick fix for this is to put whatever you're using through a noise filter. This one is only $10 on amazon and is better for those listening through speakers rather than headphones. As for me, I don't really hear it much on my phone unless its plugged in, in which this little filter fixes the issue.
Click to expand...
Click to collapse
Really, then how come whenever I switch to 4g i get buzz, but while on 3g or WiFi it doesn't buzz. And on top of that HTC has said its the 4g antenna causing it.
Sent from my GT-P7510 using xda app-developers app
Bigandrewgold said:
Really, then how come whenever I switch to 4g i get buzz, but while on 3g or WiFi it doesn't buzz. And on top of that HTC has said its the 4g antenna causing it.
Sent from my GT-P7510 using xda app-developers app
Click to expand...
Click to collapse
Coincidence? I've never gotten any buzz, and I'm always on 4G.
Not happening here on stock. I use headset for about 3 hours a day. Best sound yet and i'm a picky listener with only high quality headsets. My Bose OE2 would have picked up any noise.
a little off topic... I havent tried to replicate this on my DNA yet but my iPhone 5 and everyone iPhone I've had since '07 (I've had them all) have this buzzing noise in the car when I have them playing through the aux jack AND charging simultaneously. when I unplug the charger, noise is gone...

Play Note 3 Music though Car Speakers?

Are there any new ways to play music off your Note 3 through your car speakers??
Or is the Bluetooth FM Transmitter still the way to go? Is there one anyone can recommend? I have the old fashioned Monster wired cable, but it only has 3 channel options, and we often can't find a clear channel when we travel.
I assume you don't have a line in port on your head unit.
If all you have is am/fm radio and a cd slot then an FM transmitter is the only thing you can do.
I hope to not hijack this but when I plug mine into my aux jack, it plays fine. But holy hell, when I plug the power into it, there is a good awful noise until the audio actually starts playing. Just having everything plugged in without paying anything is too loud to stand. I'd there any thing that can be fine to stop this?
Sent from my SM-N900V using xda app-developers app
Get an A2DP radio player and you are set to go.
i use bluetooth, but audio stream has a bit delay tho, tried watching a hockey game live to confirm that, note 2 has no problem dunno y
Sent from my SM-N900W8 using Tapatalk
Best Ive Used
This is what I use and its awesome!
Ive tried a few BT FM transmitters and this is by far the best
http://www.amazon.com/gp/product/B003PPGOC0/ref=oh_details_o08_s00_i00?ie=UTF8&psc=1
If you're driving a Toyota or lexus, you can get a plug and play adapter like I have on mine. It's a Bluetooth receiver, look for the bt-35toy on Amazon. And by plug and play I mean you have to plug it into the back of the in dash unit. I did it this way because I wanted to keep the look of the original in dash unit and get Bluetooth support.
Sent from my SM-N900T using Tapatalk
arsonizt said:
This is what I use and its awesome!
Ive tried a few BT FM transmitters and this is by far the best
http://www.amazon.com/gp/product/B003PPGOC0/ref=oh_details_o08_s00_i00?ie=UTF8&psc=1
Click to expand...
Click to collapse
I like that that one can search for the best available FM channel, but in general I find the FM transmitters to be a last resort.
I am in an area with lots of radio stations (Atlanta) and for the last 28 years I've had commutes of 40-55 miles, and family scattered widely. When I used these devices I never went over 20 minutes without having to stop listening and find a new frequency due to having so many radio stations in the area. I also have been in traffic and had horrible interference from other electronic devices, possibly radios in nearby vehicles.
If your factory radio doesn't have a Bluetooth receiver the next best choice IMHO is a cable or Bluetooth receiver plugged into an auxiliary input jack. Many factory radios don't have those of course, so you should find a forum for owners of your car and get suggestions about affordable ways to add one. You may find instructions for a DIY method to add one that doesn't cost $125 or more. If you have the money those expensive ones will sound good, but after buying a $700 phone, $20 to $45 case, $8 to $35 tempered glass screen protector, $10 Qi wireless receiver, $20 to $70 Qi charger, plus who knows what for a car mount... Well, most of us have some limit to our disposable income.
Sent from my Nexus 10 using xda app-developers app
hawkeye680 said:
I hope to not hijack this but when I plug mine into my aux jack, it plays fine. But holy hell, when I plug the power into it, there is a good awful noise until the audio actually starts playing. Just having everything plugged in without paying anything is too loud to stand. I'd there any thing that can be fine to stop this?
Sent from my SM-N900V using xda app-developers app
Click to expand...
Click to collapse
Seems like a massive ground-loop issue! Not too sure on solutions though.
A couple years ago, I installed a Pioneer head unit w/bluetooth in one of my cars. Nice being able to play music without wires. Also great for handling my calls as well
SwiftKey'ed from my White Sprint Note 3 via XDA Premium
arsonizt said:
This is what I use and its awesome!
Ive tried a few BT FM transmitters and this is by far the best
http://www.amazon.com/gp/product/B003PPGOC0/ref=oh_details_o08_s00_i00?ie=UTF8&psc=1
Click to expand...
Click to collapse
This. I don't listen to music very often, but for podcast commutes the functionality of this product is amazing. Still just an FM but done really well. 2003 Lincoln Town Car Cartier Edition, just so there is no comment about put in aftermarket. The wires.....oh the wires...and computers....that aren't really computers....and the wiring manual that is totally not a wiring manual...wtf...but the ride...oh the RIDE.... whatwhatwhat
yeah um so very happy with the linked product.
hawkeye680 said:
I hope to not hijack this but when I plug mine into my aux jack, it plays fine. But holy hell, when I plug the power into it, there is a good awful noise until the audio actually starts playing. Just having everything plugged in without paying anything is too loud to stand. I'd there any thing that can be fine to stop this?
Sent from my SM-N900V using xda app-developers app
Click to expand...
Click to collapse
Back in the day I used to have this problem often. It was always feedback from the alternator.
There were line adapters you could use that would soften the noise, but no solution ever really worked very well.
Since my current head unit doesn't have bluetooth built in, but does have a line-in, I got this:
http://www.amazon.com/gp/product/B00E5CBHCE/ref=oh_details_o09_s00_i00?ie=UTF8&psc=1
And it works fairly well. I can now charge my phone, play music through the adapter and not have the horrible high pitched noise.
Only problem is you can't power the adapter and stream through it at the same time. Kinda silly, but oh well.
Oh, and I forgot to mention but that adapted can pair using NFC. I just powered it on, tapped my phone to it and it paired right up.
2014 Camry hybrid + Note 3
I've got a 2014 Camry hybrid and it uses Toyota's eTune software.
Music, pandora, navigation, google voice, keyboard taps, everything worked natively.
I can even use the multimedia controls on the steering wheel to pause/skip music.
Only minor issue is that sometimes it will not go to the next track if the screen is off.
My workaround for this was to dual screen pandora with maps to disable automatic sleep.
The roadster 2 works great for me
Sent from my SM-N900P using xda app-developers app
Foux said:
I've got a 2014 Camry hybrid and it uses Toyota's eTune software.
Music, pandora, navigation, google voice, keyboard taps, everything worked natively.
I can even use the multimedia controls on the steering wheel to pause/skip music.
Only minor issue is that sometimes it will not go to the next track if the screen is off.
My workaround for this was to dual screen pandora with maps to disable automatic sleep.
Click to expand...
Click to collapse
thats similar to honda official app called hondalink, very cool
Sent from my SM-N900W8 using Tapatalk
I have used the PARROT MKi9200 for about a year and it works great. It has a USB connection on it, so I ran a cable for charging.
I connect through a Fiio e-18 straight to a 1600w and 900w amp hooked to 4 5 1/4 pioneer components and 4 6x8 3 way pioneers and one 12 respectivly. It sounds nice and my only limitation is the bit rate on my music. If i can I usually buy dvd audio and rip it at 192/24 and that usually satisfies my ears
http://www.amazon.com/gp/product/B009NLTW60/ref=oh_details_o09_s00_i00?ie=UTF8&psc=1
let you use your aptx phone to play music in your car. Sounds great. I use this with my s4
Check GROM audio stuff, the GROM-USB2P can take a bluetooth, AUX, or straight USB connection. With the USB connection, you can use a USB drive(thumb or 2.5") or plug your android phone in and stream any audio through the USB port.
Not all phones/tablets are compatible, but is software limitation only. I have a Nexus 7 connected to my factory car radio via USB.
I'm very happy with my Harman Kardon BTA 10 plugged in to the car's AUX input. http://www.amazon.com/Harman-Kardon-External-Bluetooth-Adapter/dp/B009CA7G92
It sounds good. I read one review that said it gets interference in cars, but I have had possibly two barely-noticable audio glitches in 6 months of using it.
I like the fact that it has no battery and relies on USB power to operate. When the car is switched off, the BTA 10 powers off, disconnecting from the phone which automatically stops playback. Prevously when I used an audio cable from the headphone jack to the car aux, playback continued when the car was switched off (soundlessly if I left it plugged in) - meaning occasionally I'd have podcasts deleted before I heard them if I didn't manually stop playback, thanks to "autodelete on complete" by BeyondPod.

Transformer Prime car infotainment - Project

Hi All,
First of all it's been a while i was on XDA, Please do not hesitate to direct me to the links if any. Its just i lost the hang of it.
I would need some advice on turning TF201 to a car infotainment system. I'm running Katkiss's Stable rom with stock kernel (i believe). I like the multi-window option, that's when i decided it would be great for my car.
Any suggestions are always welcome!
I'm running premium version of Automate ( which i like the most on my Nexus 6P) but wouldn't support offline maps.
Then, I've downloaded Here Maps, I have difficulties in updating the location (could be GPS location problem) i have tried almost all navigation apps and none updated the location. Screenshot Below.
I do have an Asus GPS dongle, tried plugging that in and no luck (May be as i'm on a custom rom).
I would be glad if any of you have any ideas to speed up my (TF201) and my project as well.
Many Thanks in advance:laugh::laugh::laugh::laugh:
I've actually been thinking of the same thing since I resurrected my Prime a few days ago. There are just two problems I have. First is my car stereo doesn't have and AUX input of any kind that I know about. If I'm going to do this I'm going to have to break into it and figure out a way to get into the low side of the output amps (or some other way) and tap in there. GPS is horrible even with the dongle and if using the dongle on a long trip you can't charge it. I have two dongles (thanks for your screw-up Asus) and was thinking of taking one apart and trying to install a charging cable that would work when the dongle is plugged in. Then I remembered that I have an old BT GPS receiver that I used in my PDA days so that solves problem #2.
Keep working on it and let me know some of your ideas/solutions and I'll do the same if I start this project.
Hi theandies,
Thanks for participation.
I do not have aux input either
I use a BT FM transmitter (BC - 06 ) from BSR. I like it and I have had no problems so far.. It is that you'll have to find the best RF.
I would want to mount it to the CD player ... With those mounts available on eBay.
I have an OBD 2 adapter plugged in with torque pro.
Yes I agree charging is a big problem, and I wouldn't like the wire lying around as well, figuring out a way to plug it in from the stereo. I'm stuck here.
I drive a citroën C4 VTR 2007. Any other ideas??
Thanks again.
Sent from my Nexus 6P using XDA-Developers mobile app
ePYK me. said:
Hi theandies,
Thanks for participation.
I do not have aux input either
I use a BT FM transmitter (BC - 06 ) from BSR. I like it and I have had no problems so far.. It is that you'll have to find the best RF.
I would want to mount it to the CD player ... With those mounts available on eBay.
I have an OBD 2 adapter plugged in with torque pro.
Yes I agree charging is a big problem, and I wouldn't like the wire lying around as well, figuring out a way to plug it in from the stereo. I'm stuck here.
I drive a citroën C4 VTR 2007. Any other ideas??
Thanks again.
Sent from my Nexus 6P using XDA-Developers mobile app
Click to expand...
Click to collapse
I just can't find an FM BT transmitter that I like. I guess I'm a bit of an audio snob as far as sound quality and the FM transmitter just doesn't cut it for me. I'm an electronics engineer so breaking into my car stereo and making an audio in should take much work.
Torque was what I was going to use it for mostly as well. Still thinking about it. Right now I'm putting a clutch in my '71 Corvette convertible so that's taking up most of my time right now. I'll post stuff as I go.
Update: See edit below for results!
Hey fellas,
I'm doing this exact project myself. I'm going to try and get away with running the stock ROM, AutoMate and using my phone as a WiFi hotspot for online navigation and music streaming.
I figure that I'll just use Tasker to make a quick hotspot toggle on my phone's homescreen. I'm toying with the idea of automating the hotspot activation for whenever my phone is plugged in (since I always plug my phone in when I'm driving anyway.) I'm thinking that if I do that and have it only function between the hours of, say, 6:00am and midnight, it'll deactivate automatically for when I forget to do so during my nightly charge.
I just have my tablet velcroed to my dashboard along with a charging cable. It looks just fine! I'm sacrificing the usage of two of my AC vents, but I never really use them anyway.
I'll let you know how it goes!
Update: AutoMate isn't supported on the stock ROM... Time to get to some flashing!
Update 2: The project is finished!
The memory of how my Prime ended up in my possession is a bit of a fuzzy one, and I discovered that for whatever reason I seem to have the German edition. Coupled with the fact that I have no Windows 7 computers to run fastboot with properly, I spent a few too many hours trying to figure out how to load the KatKiss 5.1.1 ROM.
I ended up settling for an easy 4.1.1 jellybean ROM that didn't need any further screwing around with TWRP and bootloader versions. I loaded up AutoMate and found it quite lackluster and somewhat glitchy, but Drivermode works absolute wonders! The WiFi hotspot from my Galaxy Note 3 running Dirty Unicorns 5.1.1 functions beautifully.
Apparently there's ways of transmitting GPS from a phone to a tablet via Bluetooth, but the GPS on my Note has never really worked since I flashed DU anyway so I left that alone. I'm fine with just getting Google's directions manually and having the map with the route open. It's still really handy having the Prime for that.
As far as physically mounting the tablet goes, I really just velcroed it to my dashboard and ran the charging cable plus aux cord beneath the front cover panel to secure them. It holds quite firmly and can be easily removed if I feel like using the tablet for something else. I also think it improves the aesthetics of my ol' 1998 Cherokee. It looks much cleaner than the cheap ugly radio installed behind it xD
Having driven a few hours now with this new setup, I can definitely say that I am very happy with the outcome, especially since my Prime was otherwise just sitting on a shelf collecting dust. Spotify works like a charm with Drivermode and controlling its functions is easier than ever. I have also realized other potentials for having such a large, Internet-connected screen in such a convenient location. It's got some wicked movie-watching potential, for example. Date night with a view, anyone?
That does look good AggieJack. I've put my project on hold for now as I'm pulling the engine on my old Corvette and theat is taking all my free time. I've not abandoned it and hopefully finish it too. For GPS I'm going to use my external Bluetooth GPS receiver I have. It works great ant can lock on to double digit signals.
That looks fantastic.. Again. Katkiss runs fine for me with automate.. It wouldn't pick the GPS. That's where I'm held at.
If I get that going.. I will may have to find a solution to connect the charger inside the stereo cabinet. As I don't like wires lying around.
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@theandies any link to the external GPS reciever??
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This is what I have. Bought it a long time ago to work with my old PDA.
http://www.amazon.com/Pharos-PT110-Bluetooth-Portable-Receiver/dp/B00080FYQW/ref=sr_1_3?ie=UTF8&qid=1462793834&sr=8-3&keywords=Pharos+bluetooth+gps
Thanks @theandies.
Sent from my Nexus 6P using XDA-Developers mobile app
Hi @AggieJack is your prime connected to the inner wiring?? I'm not sure of the terminology. Or is it connected to the 12v socket.?
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