See also:

Vehicle information
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Sound output
Switching on/off When the ignition is switched off: press ON/OFF button on the radio. Muting When the ignition is switched on or the engine is running: press the ON/OFF button on the radio. ...

Example: playing back a CD
1.  If necessary, switch on entertainment audio output. 2.  Press the button on the steering wheel. 3.  {C D and multimedia} The system plays the last media played. 4.  Press ...