See also:

Programming Additional Transmitters
Refer to Sentry Key “Customer Key Programming.” If you do not have a programmed RKE transmitter, contact your authorized dealer for details. ...

DISC/AUX Button
Pressing the DISC/AUX button will allow you to switch from AM/FM modes to DISC/AUX mode. ...

Supported Media (Disc Types)
The MP3/WMA file recording media supported by the radio are CDDA, CD-R, CD-RW, MP3,WMA, DVD Video, DVD-R, DVD-RW, DVD+R, DVD+RW, and CDDA+MP3. ...