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 ...

Socket for OBD Onboard Diagnosis
Socket for OBD Onboard Diagnosis On the driver's side is an OBD socket for checking the primary components in the vehicle emissions. ...

HD Radio™ reception
Many stations broadcast both analog and digital signals. If a digital radio network is available, these stations can be received digitally and thus with better sound quality. License conditions ...