See also:

Tone control
You can alter various tone settings, e.g. treble and bass or the speed-dependent volume increase. The tone settings are applied to all audio sources. The settings are stored for the remote control ...

Digital compass
Digital compass 1. Adjustment button 2. Display The display shows you the main or secondary compass direction in which you are driving. ...

Replacing the battery
1. Take the integrated key out of the remote control. 2. Push in the catch with the key, arrow 1. 3. Remove the cover of the battery compartment; see arrow 2. 4. Insert a battery of the same ty ...