Hello, I have a 07 335i with Bluetooth phone but no audio.
I am streaming my audio using the xtremeMac incharged bt. Both incharged and my car connects fine and calls come in via the car, and the audio just pauses... Sucks that you have to control your music via the phone but this setup gets the job done... Plus side, the incharge has one USB port for charging.
http://www.bestbuy.com/site/XtremeMa...&skuId=4852523