See also:

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. ...

Distance
Selecting a distance Adjust the distance according to the traffic and weather conditions; otherwise, there is the danger of an accident occurring. Maintain the prescribed safety distance. ...

General information
The channels are offered in predefined packages. The packages must be enabled by telephone. ...