See also:

Initialization after a power failure
After a power failure, it is only possible to raise the roof, if necessary. Have the system initialized by your service center. ...

External devices
Overview AUX-IN port Overview> It is possible to connect audio devices, e.g. MP3 players. Sound is output over the vehicle speakers. > Recommended settings: mid-level tone and volume settin ...

Automatic deactivation during forward travel
The system switches off when a certain driving distance or speed is exceeded. Switch the system back on if necessary. ...