So I installed a Pioneer XB930BT in my car not too long ago. I have no issues connecting or pairing. It connects fine. Instead my iPhone 4 (iOS5) has been having issues with the volume when streaming through Bluetooth. When I first start up the car and drive with the music streaming from my iPhone the volume is perfect and the quality is spot on. However, when I turn the car off and come back sometimes the volume is extremely low and I have to crank the volume up all the way on the head unit to get it at an audible level. When I do this the quality goes to crap and its still not even that loud compared to what its suppose to be. The only fix I have found and only sometimes works is to turn off the bluetooth audio on the headunit and wait for a while, then turn it on and play the music again. Even so, this only works about 75% of the time. Its really annoying and I'd love to hear some ideas on how I can fix this! Does anyone else have this problem when streaming music through Bluetooth? Thanks!