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. ...

Malfunction
In the event of a failure or malfunction of the parking brake, secure the vehicle against rolling using a wheel chock, for example, when leaving it. ...

On/off and tone
The following audio and video sources share the same control elements and adjustments: > Radio > CD/DVD player > CD changer > Video > External devices, e.g. MP3 player ...