See also:

General information
The sound settings are stored for the remote control currently in use. ...

Adjusting volume
Turn knob 1next to the CD/DVD player until the desired volume is obtained. You can also adjust the volume with buttons on the steering wheel. ...

Opening the Options menu
Press the button. The "Options" menu is displayed. Additional options: move the controller to the right repeatedly until the "Options" menu is displayed. Options menu The ...