See also:

Entertainment
Operation of the radio, CD equipment and external audio devices as well as their tone settings are described in this chapter. ...

Volume
▷ "Speed volume": speed-dependent volume control. ▷ "PDC": volume of the PDC signal compared to the entertainment sound output. ▷ "Gong": volume o ...

Activating HDC
Press the button; the LED above the button lights up. ...