GM Service Manual Online
For 1990-2009 cars only

MP3 CD-R Disc

MP3 Format

If you burn your own MP3 disc on a personal computer:

    • Make sure the MP3 files are recorded on a CD-R disc.
    • Do not mix standard audio and MP3 files on one disc.
    • Make sure playlists have a .m3u or .wpl extension, other file extensions might not work.
    • Files can be recorded with a variety of fixed or variable bit rates. Song title, artist name, and album are available for display by the radio when recorded using ID3 tags version 1 and 2.
    • Create a folder structure that makes it easy to find songs while driving. Organize songs by albums using one folder for each album. Each folder or album should contain 18 songs or less.
    • Make sure to finalize the disc when burning an MP3 disc, using multiple sessions. It is usually better to burn the disc all at once.
    • Do not use CD-RW discs.
    • Do not use colored discs.

The player is able to read and play a maximum of 50 folders, 50 playlists, 10 sessions, and 255 files. Long file names, folder names, or playlist names could use more disc memory space than necessary. To conserve space on the disc, minimize the length of the file, folder, or playlist names. An MP3 CD that was recorded using no file folders can also be played. The system can support up to 11 folders in depth, though, keep the depth of the folders to a minimum in order to keep down the complexity and confusion in trying to locate a particular folder during playback. If a CD contains more than the maximum of 50 folders, 50 playlists, 10 sessions, and 255 files the player lets you access and navigate up to the maximum, but all items over the maximum are ignored.

Root Directory

The root directory is treated as a folder. If the root directory has compressed audio files, the directory is displayed as F1 ROOT. All files contained directly under the root directory are accessed prior to any root directory folders. However, playlists (Px) are always accessed before root folders or files.

Empty Directory or Folder

If a root directory or a folder exists somewhere in the file structure that contains only folders/subfolders and no compressed files directly beneath them, the player advances to the next folder in the file structure that contains compressed audio files. The empty folder does not display.

No Folder

When the CD contains only compressed files, the files are located under the root folder. The next and previous folder functions will not function on a CD that was recorded without folders or playlists. When displaying the name of the folder the radio displays ROOT.

When the CD contains only playlists and compressed audio files, but no folders, all files are located under the root folder. The folder down and the folder up buttons searches playlists (Px) first and then goes to the root folder. When the radio displays the name of the folder the radio displays ROOT.

Order of Play

Tracks are played in the following order:

    • Play begins from the first track in the first playlist and continues sequentially through all tracks in each playlist. When the last track of the last playlist has played, play continues from the first track of the first playlist.
    • If the CD does not contain any playlists, then play begins from the first track under the root directory. When all tracks from the root directory have played, play continues from files according to their numerical listing. After playing the last track from the last folder, play begins again at the first track of the first folder or root directory.

When play enters a new folder, the display does not automatically show the new folder name unless the folder mode has been chosen as the default display. See the information button later in this section for more information. The new track name displays.

File System and Naming

The song name that is displayed is the song name that is contained in the ID3 tag. If the song name is not present in the ID3 tag, then the radio displays the file name without the extension (such as .mp3) as the track name.

Track names longer than 32 characters or four pages are shortened. Parts of words on the last page of text and the extension of the filename does not display.

Preprogrammed Playlists

Preprogrammed playlists that were created by WinAmp™, MusicMatch™, or Real Jukebox™ software can be accessed, however, they cannot be edited using the radio. These playlists are treated as special folders containing compressed audio song files.

Playing an MP3

Insert a CD partway into the slot, label side up. The player pulls it in, and READING displays. The CD should begin playing and the CD symbol displays.

If the ignition or radio is turned off with a CD-R in the player, it stays in the player. When the ignition or radio is turned on, the CD-R starts to play where it stopped, if it was the last selected audio source.

As each new track starts to play, the track number displays.

/ (Tune): Turn clockwise or counterclockwise to go to the next or previous track.

(Previous Folder): Press to go to the first track in the previous folder. Press and hold to reverse through the current track.

(Next Folder): Press to go to the first track in the next folder. Press and hold to fast forward the current track.

RDM (Random): Press to hear the tracks in random, rather than sequential order, on one CD, one folder, or all of the loaded CDs.

To use random, do one of the following:

    • To play the tracks on the CD in random order, press and release until RANDOM DISC PLAY displays.
    • To play the tracks in the folder in random order, press and release until RANDOM FOLDER displays.
    • To play the tracks on all of the CDs that are loaded in random order, press and release until RANDOM ALL DISCS displays.

To turn off random play, press and release the RDM button until RANDOM OFF displays.

RPT (Repeat): Press to hear a track, CD, or a folder over again. To use repeat, do one of the following:

    • To repeat a track, press and release until REPEAT displays.
    • To repeat a CD, press and release until REPEAT ONE DISC displays.
    • To repeat a folder, press and release until REPEAT FOLDER displays.

To turn off repeated play, press and release the RPT button until REPEAT OFF displays.

MUTE: Press to silence the system. Press again to turn the sound on. This button is not available on the Radio with Six-Disc CD.

SEEK : Press the left arrow to go to the start of the current track, if more than eight seconds have played. Press the right arrow to go to the next track. If either arrow is held or pressed more than once, the player continues moving backward or forward through the CD.

(Information): Press to display the artist name and album contained in the ID3 tag.

BAND: Press to listen to the radio when a CD is playing. The inactive CD remains inside the radio for future listening.

CD AUX (Auxiliary): Press to play a CD when listening to the radio. The CD symbol displays when a CD is loaded.

(Eject): Press to eject a CD. Eject can activated with either the ignition or radio off.