See also:

The concept
The following can be operated using the buttons and the thumbwheel on the steering wheel: Current audio source. Redial on telephone*. Activation of the voice activation system*. ...

General information
The sound settings are stored for the remote control currently in use. ...

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 ...