See also:

Shortcut
The menu alternatives are numbered and can be accessed directly by pressing the respective keys on the numbered keypad on the left side of the audio panel. ...

External sound sources
USB flash drive To simplify the use of a USB flash drive, it is advisable to only store music files on the drive. It will take considerably longer for the system to index the files on the drive ...

Tilt position
Tilt position, raised at the rear edge 1 Open (raise the rear edge of the front glass section) by pressing the rear edge of the control upward. 2 Close by pulling the rear edge of the control ...