so i got annoyed that i have to use a stereo cable and plug it in everytime i got in the car to stream Pandora... I figured i'd give this thing a shot
Amazon.com: BlackBerry Remote Stereo Bluetooth Gateway for BlackBerry 8100, 8110, 8120, 8130, 8300, 8310, 8320, 8330, 8800, 8820, 8830, 9000 (Black): Electronics
it was really simple to setup and the blackberry is smart enough to send music through it and still route the calls trhough the car's bluetooth. it can be powered via the usb port in the center console; its like a perfect little something that bmw didn't add it. I highly recommend it
-john