GM Service Manual Online
For 1990-2009 cars only

MP3 CD-R / CD-RW Disc

MP3 Format

Only the radio with a six-disc CD player can play MP3 CD's.

The MP3 player is able to read and play a maximum of:

    • 50 folders.
    • 11 folders in depth
    • 50 playlists
    • 10 sessions
    • 255 files
    •  All items over the maximum are ignored.

To record an MP3 disc:

    • Record the MP3 files onto a CD-R or CD-RW disc.
    • Record playlists with an .m3u or .wpl extension.
    • Do not mix standard audio and MP3 files on the same disc.
    • Record the entire disc at once.
    • Finalize the disc when recording an MP3 disc with multiple sessions.

Root Directory

The root directory is treated as a folder. All .mp3 files in the root directory are accessed before folders in the root directory.

Empty Directory or Folder

Empty folders and directories will not show on the display. The system will ignore empty directories and folders and advance to the next directory or folder that has .mp3 files in it.

No Folder

On a CD that contains only .mp3 files in the root directory the next and previous folder functions do not work.

On a CD that contains playlists and .mp3 files, the next and previous folder functions search playlists first and then search .mp3 files in the root folder.

Order of Play

Tracks are played in the following order for CDs that have playlists:

  1. The first track in the first playlist and then continues sequentially through all tracks in each playlist
  2. When the last track of the last playlist has played, play restarts from the first track of the first playlist.

Tracks are played in the following order for CDs that do not have playlists:

  1. Play starts with the first file in the root directory.
  2. After all files from the root directory have played, files in the folders will play.
  3. After playing the last file from the last folder, play restarts with the first file in the root directory.

File System and Naming

The radio shows track names that are shorter than 39 characters, names that are longer will be shortened. The radio will show the track name as:

    • The song name that is in the ID3 tag.
    • The file name without the file extension if the song name is not in the ID3 tag.

Preprogrammed Playlists

Playlists are accessed before files or folders in the root directory.

Preprogrammed playlists created by WinAmp™, MusicMatch™, or Real Jukebox™ software can be accessed and are treated as special folders containing compressed audio song files.

Playing an MP3

The MP3 player cannot play the smaller 3 inch (8 cm) single CDs with an adapter ring.

To play an MP3 CD:

  1. Press CD if an MP3 disc is already in the player.
  2. Refer to Radio(s) for information on how to load discs if the CD player is empty.
MP3 CD Display: To change the MP3 CD display, press the softkey under the label Display Mode until the desired display is shown.

The MP3 CD display modes are:

    • Normal mode with folder number, track number, and elapsed time.
    • Folder and song info mode with folder number, track number, folder name and song name. Folder name and song name can only be displayed when the appropriate data is stored on the CD MP3 ID tag.
    • Artist and song info mode with folder number, track number, artist name, and song name. Artist name and song name can only be displayed when the appropriate data is stored on the CD MP3 ID tag.
    • Song info mode with folder number, track number, and folder name.
RANDOM: Select to hear the tracks in random order. The random modes are RDM IN DISC (random in disc) or RDM IN FOLDER (random in folder). To use RANDOM:

  1. Press the softkey below the Random label to display the different random modes.
  2. Press the softkey below RDM IN DISC or RDM IN FOLDER.
  3. Press to go to the next track.
  4. Press to go to the previous track.
  5. Press the softkey below the active random mode to cancel the random mode.
REPEAT: Select to repeat tracks or folders. To use REPEAT:

  1. Press the softkey below the REPEAT label to display the different repeat modes.
  2. Press the softkey below REPEAT TRACK, REPEAT DISC, or REPEAT FOLDER to chose that mode.
  3. Press the softkey below the active repeat mode to cancel the repeat mode.
BROWSE MODE: Folders and tracks of an MP3 disc can be found easier by using the browse mode.

Finding a track in the current folder:

  1. Press the softkey below BROWSE MODE. The files in the active folder display and the active track is highlighted.
  2. Turn the MENU knob to highlight the desired track.
  3. Press the MENU knob to play the highlighted track.
  4. Press the softkey below EXIT to exit browse mode.

Finding a track in a different folder:

  1. Press the softkey below BROWSE MODE. The files in the active folder display and the active track is highlighted.
  2. Turn the MENU knob to highlight ‘Folder Listing’.
  3. Press the MENU knob to list all the folders on the CD.
  4. Turn the MENU knob to highlight the desired folder.
  5. Press the MENU knob to list the tracks in the highlighted folder.
  6. Turn the MENU knob to highlight the desired track.
  7. Press the MENU knob to play the highlighted track.
  8. Press the softkey below EXIT to exit browse mode.

Finding a playlist:

  1. Press the softkey below BROWSE MODE. The files in the active folder display and the active track is highlighted.
  2. Turn the MENU knob to highlight ‘Playlists’.
  3. Press the MENU knob to list all the playlists on the CD.
  4. Turn the MENU knob to highlight the desired playlist.
  5. Press the MENU knob to play the highlighted playlist.
  6. Press the softkey below EXIT to exit browse mode.
DISC (Next Folder): Press and hold for more than two seconds to go to the next folder.

DISC (Previous Folder): Press and hold for more than two seconds to go to the previous folder.

(Forward): Press to go to the next track or press multiple times until the desired track is reached.

(Reverse): Press to go back to the start of the current track or press multiple times until the desired track is reached.