See also:

Closing the windows and glass sunroof/panoramic glass sunroof
Driving with the glass sunroof/panoramic glass sunroof and windows open results in increased air resistance and raises fuel consumption. ...

Replacing the batteries
No rechargeable batteries Do not use rechargeable batteries, as damage may result from the substances in the batteries. 1. Remove the cover. Press on the cover, arrow 1, and push forward, ...

Treble, bass, balance, andfader
► "Treble": treble adjustment. ► "Bass": depth adjustment. ► "Balance": left/right volume distribution. ► "Fader": front/rear volume ...