See also:

External audio source volume
If an external devices such as an MP3 player or an iPod is connected to the AUX socket, the device's volume may be different from the volume of the internal sound sources such as the disc play ...

Selecting a source for the rear screens from the front center control panel
An audio/video source for the rear screen(s) can be selected from the front center control panel. The same source can be selected for both rear screens or different sources can be selected for ...

Neutral position (N)
No gear is engaged and the engine can be started with the gear selector in this position. Apply the parking brake if the vehicle is stationary with the gear selector in position N. ...