See also:

Priority options
The driver has priority The source selected via iDrive in the front is output on the vehicle loudspeakers and can be selected but not operated from the rear. Other audio or video sources ...

2012 BMW 3 Series Sedan: First Look
Competes with: Mercedes-Benz C-Class, Infiniti G37, Audi A4 Looks like: A little bit bigger outside, just a teensy bit bigger inside Drivetrain: 240-hp, 2.0-liter twin-turbocharged inline-four cylin ...

Controls
1 Change the entertainment source 2 CD/DVD drive 3 Eject CD/DVD 4 Change station/track 5 Programmable memory buttons 6 Volume, on/off ...