See also:

Switching on/off
Switching on/off Press the button. ...

Deleting all stored programs
Press the left and right memory buttons for approx. 20 seconds until the LED flashes rapidly. All stored programs are deleted. The programs cannot be deleted individually. ...

Sound output via speakers
In addition to the headphones, you can also play the sound via the vehicle speakers. 1. "CD/Multimedia" 2. "External devices" 3. "AUX rear" 4. "Volume" 5 ...