[Q] Phone sends noise via A2DB - Galaxy S II Q&A, Help & Troubleshooting

Hello,
I've got a strange problem.
I connect the phone with my A2DP receiver in my car. The car audio has the function to switch automaticly to source A2DP if there is a signal.
On first connect everything works fine, bun on reconnect (leave the car, come back and reconnect) the phone sends a very low noise so that the car audio switches to A2DP.
There is no player running on the phone.
Samsung voice to go and vlingo or similar are not installed (I hear the same noise when vlingo is in listening mode).
When I start a player, start music and stop again, the noise is gone and the car audio swiches back to radio.
If I use a MW600 instead I can hear the noise too, when I turn the volume up.
I had the issue with Stock KI4 and now with CheckROM V6 too.
Did someone noticed this noise too? I there something I can do?
thanks
Andre

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I searched all over (including here) for an A2DP switch/toggle app but never found one that worked fo me. After talking to both T-Mobile and HTC tech support to no avail, I happened to reset my phone while it was paired with A2DP on, the bluettoh speaker speaker was on, and bluetooth discoverable was on (bluetooth logo with eye on top). After it rebooted it found the speaker and turned on stereo audio automatically.
I can't explain it but it's exactly what I was looking for it to do. If you try this I hope it works for you too.

[Q] How to do SW disconnect of headset

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i found a bug in .73;
sometimes if i listen to music with standard no mic stereo headphones (Sennheiser MX160), once i disconnect headphones and try to make a call the audio signal is not switched to the phone's speaker. so the call is mute, the other end can hear me but i can't hear the other end, if i connect the headphones and disconnect again the audio signal get routed correctly.
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Droid RAZR Maxx, stock ROM, rooted.
I recently installed an Alpine CDE-HD137BT stereo in my car, which has quite a bit of bluetooth functionality. However, I do have quite a few issues connecting my Razr's BT with the Alpine.
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never had those problems before but I now how pissy bluetooth between phones and radios can be, I had a pioneer AVIC D-3 with the BTB-200 bluetooth module. When I first got it I had to manually pair it each time and the problem was that when setting up the pairing I had to have the radio discover the phone instead of the phone discovering the radio or vice versa I can't remember but that solved almost all of the problems I had then, every once in a blue moon my current radio doesn't auto pair, but its not a huge deal as this one doesn't do A2DP audio streaming it only does the Hand Free Profile and text message alerts.

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Do you know of any application that manages your bluetooth connections?
Here's what I'm talking about, I have bluetooth headphones, several speakers and my car that all are connected to my phone and I'm having several small issues.
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Nothing? Any idea if I have to just deal with these issues?

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