See also:

BACK switch (models with navigation system)
Push this switch to go back to the previous screen or cancel the selection if it is not completed. ...

Volume control switches
Push the upper (+) or lower (−) side switch to increase or decrease the volume. ...

Audio source switch
Push the audio source switch to change the mode as follows. Type A: • Models with navigation system AM FM SAT CD/DVD Music Box® USB/iPod® Bluetooth® Audio • Models without navigation sy ...