See also:

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 ...

Malfunction
Comfort Access may not function properly if it experiences interference from external sources such as mobile phones, metal objects, overhead power lines, transmission towers, etc. In this case, ...

Tone
Only treble and bass can be set in the rear for headphones. The settings are made separately for the left and right headphones. Operation is the same as for the front tone. ...