See also:

Sound output
Switching on/off When the ignition is switched off: press ON/OFF button on the radio. Muting When the ignition is switched on or the engine is running: press the ON/OFF button on the radio. ...

Switching the warning function on/off
Press the button On: the LED lights up. Off: the LED goes out. The state is stored for the remote control currently in use. ...

Fast forward/reverse
Buttons on the CD/DVD player: Press and hold the button for the corresponding direction. ...