See also:

Notes On Playing MP3/WMA Files
The radio can play MP3/WMAfiles; however, acceptable MP3/WMAfile recording media and formats are limited. When writing MP3/WMA files, pay attention to the following restrictions. ...

Controls
The headphone power indicator and controls are located on the right ear cup. NOTE: The rear video system must be turned on before sound can be heard from the headphones. To conserve battery lif ...

Controlling The iPod Or External USB Device Using Radio Buttons
To get into the iPod /USB/MP3 control mode and access a connected audio device, either press the “AUX” button on the radio faceplate or press the VR button and say USB or Switch to USB . Once ...