Since I updated to 2.2, my Zio will not transfer bluetooth audio to my car stereo (Sony Xplod MEX BT2800). I have read in other forums (regarding other android phones on 2.2) that the update has caused a few issues with the bluetooth. I have disabled the bluetooth on the phone and on the head unit and tried to re-sync but to no avail. Any insight or ideas would be greatly appreciated. After all, I bought the head unit because it supported bluetooth audio from my phone.