See also:

Volume control switch
Press the switch to the “+” side to increase the volume. Press the switch to the “−” side to reduce the volume. A number indicating the volume will be shown on the audio display. ...

Displaying radio PS (Program Service Name) and RT (Radio Text)
...

Security ID plate
Security ID plate 1) Key number plate 2) Security ID plate The security ID is stamped on the security ID plate attached to the key set. Write down the security ID and keep it in another sa ...