See also:

Operation Instructions - (Disc Mode For CD And MP3/WMA Audio Play, DVD-Video)
The radio DVD player and many DVD discs are coded by geographic region. These region codes must match in order for the disc to play. If the region code for the DVD disc does not match the region ...

Inserting Compact Disc(s)
Gently insert one CD into the CD player with the CD label facing up. The CD will automatically be pulled into the CD player and the CD icon will illuminate on the radio display. If a CD does not ...

Media Center 230 (REQ) — AM/FM Stereo Radio And 6–Disc CD/DVD Changer (MP3/WMA AUX Jack)
NOTE: The radio sales code is located on the lower right side of the radio faceplate. Media Center 230 (REQ) ...