See also:

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. ...

Stereo indicator
The stereo indicator “ST” will illuminate when an FM stereo broadcast is received. ...

Pocket (if equipped)
CAUTION Do not use the pocket as an ashtray or leave a lighted cigarette in the pocket. This could cause a fire. To use the pocket, open the lid. ...