See also:

Acc
In this position the electrical accessories (radio, accessory power outlet, etc.) can be used. ...

When “No song” is displayed (type D audio)
This message is displayed when no playable audio files are in the connected USB storage device/iPod®. Connect a USB storage device/iPod® that has playable audio files stored in it. ...

Repeating
Type A audio Type B audio To repeat a track/file (track), briefly press the “RPT/RDM” button (type A audio) or “RPT” button (type B audio) while the track/file (track) is playing. Each time y ...