See also:

Saving the spoken instructions on the programmable memory buttons
The function for switching the spoken instructions on/off can be stored on a programmable memory button, for quick access. ...

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*. ...

Rear CD/DVD player
1 CD/DVD slot 2 Eject CD/DVD 3 On/off, right 4 Headphone connection, right 5 RCA sockets 6 Headphone connection, left 7 On/off, left ...