[Q] How is the GS2 identified by bluetooth? - AT&T Samsung Galaxy S II SGH-I777

I have a Ford Sync navigation setup in my truck. My truck has the ability to pair with several phones and then you can choose which one is a favorite or main phone and it will automatically connect to that one every time it 'sees' it. Or if that phone is not available you can manually select one of the other previously paired phones. Currently i have my I-777, a T-989, and an iPhone 5 paired on the Ford Sync.
Being a frequenter of this website for many years I obviously can't leave well enough alone and I flash various roms on my GS2 whenever I feel the need for change. Currently I am running the latest AOKP task650 update as my main rom and then with Siyah kernel 5.01 I run a dual boot and also have Jellybam as rom #2. They both run great as I have them setup and I have no complaints about the kernel or the roms.
My question here is this: How is the GS2 identified by a Bluetooth device when it is pairing? And is there a way to change this identification?
My reason and other thoughts behind this question: Being as I cant leave well enough alone with the roms I frequently change roms or boot to the second rom. When i do this the Bluetooth pairing to the Sync is gone and it needs to be re-paired. The old pairing is still there on the Sync and when I re-pair the GS2 it replaces the old pairing. This in turn wipes out all the saved favorites because the Sync assumes its a new phone.
I have tried naming the GS2 the same name such as I-777 and also a different name such as AOKP or I-777x2 and in both cases the the phone must be re-paired, the old pairing and name is replaced by the new name and pairing, and all the saved data is gone.
The T-989 and iPhone pairings don't get replaced, only the previous pairings of the GS2 regardless if I rename it or not.
I seem to remember that my Captivate could be stored on the Sync as several different pairings and names, why would the GS2 be different? Could it be that the Captivate multiple pairings were from back when we would have to fix our android IDs after each flash? And if I flashed a new ID for each rom I could have my multiple bluetooth profiles saved?
I even want to say at one point I did have two different GS2 pairings on the Sync. I think one may have been RockRatts Cobra rom and then maybe ShoStock? perhaps one was a GB rom and one was an ICS rom at the time? Would that make a difference?
Or is it something like a MAC address and the name change under bluetooth settings is just for user convenience but the Sync always sees the digital bluetooth identifier?
I looked around on the web and couldn't find a clear answer to my question and after reading through some more searches on XDA that came close but didn't answer my question i thought i would post it as I know someone here has the answer already.

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Ok, to reply to my own thread, yes each phone has a unique Bluetooth MAC address that can be spoofed or changed.
Interestingly some of the moderators shut down threads about it while others don't. I can't decide yet from the threads I have read in the last 2 hours if its something I can easily change to run permanently different in rom 1 vs. rom 2. Or even if I can run a script to change it based on the rom I am currently on so the Sync sees a different MAC for each rom.
Interesting reading though, Google knows everything once you figure out what keywords to use.

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FireRaider said:
Interesting reading though, Google knows everything once you figure out what keywords to use.
Click to expand...
Click to collapse
Your Google-fu is growing, young Skywalker.
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