MP3 (Radio with CD/USB)
Format
Radios that have the capability of playing MP3s can play.mp3 or .wma files that were recorded onto a CD-R or CD-RW disc.
The files can be recorded with the following fixed bit rates: 32 kbps, 40 kbps, 56 kbps, 64 kbps, 80 kbps, 96 kbps, 112 kbps, 128 kbps, 160 kbps, 192 kbps, 224 kbps, 256 kbps, and 320 kbps or a variable bit rate.
Radios that have a USB port can play.mp3 and .wma files stored on a USB storage device as well as AAC files stored on an iPod.
Compressed Audio or Mixed Mode Discs
The radio can play discs that contain both uncompressed CD audio and MP3/WMA files. If both formats are on the disc, the radio plays both file formats in the order in which they were recorded to the disc.
CD-R or CD-RW Supported File and Folder Structure
The radio supports:
► Up to 50 folders.
► Up to eight folders in depth.
► Up to 15 playlists.
► Up to 512 files and folders.
► Playlists with an .m3u or .wpl extension.
► Files with an .mp3, .wma, or .cda file extension.
USB Supported File and Folder Structure
The radio supports:
► Up to 700 folders.
► Up to eight folders in depth.
► Up to 65,535 files.
► Folder and file names up to 64 bytes.
► Files with an .mp3 or .wma file extension.
► AAC files stored on an iPod.
► FAT16
► FAT32
Root Directory
The root directory of the disc is treated as a folder. If the root directory has compressed audio files, the directory displays on the radio as the CD label.
If a disc contains both uncompressed CD audio and MP3/WMA files, a folder under the root directory called CD accesses all of the CD audio tracks on the disc.
Empty Folder
Folders that do not contain files are skipped, and the player advances to the next folder that contains files.
Order of Play
Compressed audio files are accessed in the following order:
► Playlists (Px).
► Files stored in the root directory.
► Files stored in folders in the root directory.
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.
► Play begins from the first track in the first folder and continues sequentially through all tracks in each folder. When the last track of the last folder has played, play continues from the first track of the first folder.
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. The new track name displays.
File System and Naming
The song name that displays is the song name contained in the ID3 tag.
If the song name is not present in the ID3 tag, 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 do not display.
Preprogrammed Playlists
Preprogrammed playlists that were created using 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.
Playlists that have an .m3u or .pls file extension and are stored on a USB device may be supported by the radio with a USB port.
Playing a CD-R or CD-RW MP3
(Tune): Turn to select MP3/WMA files.
SEEK: Press to go to the start of the track, if more than 10 seconds have played. Press and hold or press multiple times to continue moving backward through tracks.
SEEK: Press to go to the next track. Press and hold or press multiple times to continue moving forward through tracks.
REV (Reverse): Press and hold to reverse playback quickly. Sound is heard at a reduced volume and the elapsed time of the file displays.
Release 
REV to resume playing.
FWD (Fast Forward): Press and hold to advance playback quickly. Sound is heard at a reduced volume and the elapsed time of the file displays. Release FWD to resume playing. The elapsed time of the file displays.
(Previous Folder): Press the softkey below 
to go to the first track in the previous folder.
(Next Folder): Press the softkey below 
to go to the first track in the next folder.
RDM (Random): Files on the disc can be listened to in random, rather than sequential order. To use random, press the softkey under the RDM tab until Random Current Disc displays to play songs in random order. Press the same softkey again to turn off random play.
(Music Navigator): Press the softkey below to play files in order by artist or album.
The player scans the disc to sort the files by artist and album ID3 tag information. It can take several minutes to scan the disc depending on the number of files on the disc.
The radio may begin playing while it is scanning in the background.
When the scan is finished, the disc begins playing files in order by artist. The current artist playing is shown on the second line of the display. Once all songs by that artist are played, the player moves to the next artist in alphabetical order and begins playing files by that artist.
To listen to files by another artist, press the softkey below either arrow tab. The disc goes to the next or previous artist in alphabetical order.
Continue pressing either softkey below the arrow tab until the artist displays.
To change from playback by artist to playback by album:
1. Press the softkey below the Sort By tab.
2. Press one of the softkeys below the Album tab from the sort screen.
3. Press the softkey below the Back tab to return to the main music navigator screen.
The album name displays on the second line between the arrows and songs from the current album begins to play. Once all songs from that album have played, the player moves to the next album in alphabetical order on the CD and begins playing MP3 files from that album.
To exit music navigator mode, press the softkey below the Back tab to return to normal MP3 playback.
Connecting a USB Storage Device or iPod®
To connect a USB storage device, connect the device to the USB port located in the instrument panel storage area. See Instrument Panel Storage for more information.
The USB port can be used to control an iPod or a USB storage device.
To connect an iPod, connect one end of the USB cable that came with the iPod to the iPod’s dock connector and connect the other end to the USB port located in the instrument panel storage area.
If the vehicle is on and the USB connection works, “OK to disconnect” and a GM logo may appear on the iPod, and iPod appears on the radio's display.
The iPod music appears on the radio’s display and begins playing.
The iPod charges while it is connected to the vehicle if the vehicle is in the ACC/ACCESSORY or ON/RUN position. When the vehicle is turned off, the iPod automatically powers off and will not charge or draw power from the vehicle's battery.
If you have an older iPod model that is not supported, it can still be used by connecting it to the Auxiliary Input Jack using a standard 3.5 mm (1/8 in) stereo cable. See Auxiliary Devices for more information.
Using the Radio to Control a USB Storage Device or iPod
The radio can control a USB storage device or an iPod using the radio buttons and knobs and display song information on the radio’s display.
(Tune): Turn to select files.
SEEK: Press to go to the start of the track, if more than 10 seconds have played. Press and hold or press multiple times to continue moving backward through tracks.
SEEK: Press to go to the next track. Press and hold or press multiple times to continue moving forward through tracks.
REV (Reverse): Press and hold to reverse playback quickly.
Sound is heard at a reduced volume. Release 
REV to resume playing. The elapsed time of the file displays.
FWD (Fast Forward): Press and hold to advance playback quickly. Sound is heard at a reduced volume. Release 
FWD to resume playing. The elapsed time of the file displays.
(Information): Press to display additional information about the selected track.
Using Softkeys to Control a USB Storage Device or iPod
The five softkeys below the radio display are used to control the functions listed below.
To use the softkeys:
1. Press the first or fifth softkey below the radio display to display the functions listed below, or press the softkey below the function if it is currently displayed.
2. Press the softkey below the tab with the function on it to use that function.
(Pause): Press the softkey below to pause the track.
The tab appears raised when pause is being used. Press the softkey below again to resume playback.
Back: Press the softkey below the Back tab to go back to the main display screen on an iPod, or the root directory on a USB storage device.
(Folder View): Press the softkey below 
to view the contents of the current folder on the USB drive. To browse and select files:
1. Press the softkey below 
.
2. Turn 
to scroll through the list of folders.
3. Press 
to select the folder.
If there is more than one folder, repeat Steps 1 and 2 until the folder is reached.
4. Turn to scroll through the files in the selected folder.
5. Press to select the file to be played.
To skip through large lists, the five softkeys can be used to navigate in the following order:
► First softkey, first item in the list.
► Second softkey, 1% through the list each time the softkey is pressed.
► Third softkey, 5% through the list each time the softkey is pressed.
► Fourth softkey, 10% through the list each time the softkey is pressed.
► Fifth softkey, end of the list.
(Music Navigator): Press the softkey below 
to view and select a file on an iPod, using the iPod's menu system. Files are sorted by:
► Playlists
► Artists
► Albums
► Genres
► Songs
► Composers
To select files:
1. Press the softkey below 
.
2. Turn 
to scroll through the list of menus.
3. Press 
to select the menu.
4. Turn to scroll through the folders or files in the selected menu.
5. Press to select the file to be played.
To skip through large lists, the five softkeys can be used to navigate in the following order:
► First softkey, first item in the list.
► Second softkey, 1% through the list each time the softkey is pressed.
► Third softkey, 5% through the list each time the softkey is pressed.
► Fourth softkey, 10% through the list each time the softkey is pressed.
► Fifth softkey, end of the list.
Repeat Functionality
To use Repeat:
Press the softkey below 
or 
to select between Repeat All and Repeat Track.
(Repeat All): Press the softkey below to repeat all tracks.
The tab appears lowered when Repeat All is being used. This is the default mode when a USB storage device or iPod is first connected.
(Repeat Track): Press the softkey below to repeat one track. The tab appears raised when Repeat Track is being used.
Shuffle Functionality
To use Shuffle:
Press the softkey below
, 
or 
to select between Shuffle Off, Shuffle All Songs/ Shuffle Songs, Shuffle Album, or Shuffle Folder.
(Shuffle Off): This is the default mode when a USB storage device or iPod is first connected.
(Shuffle All Songs/Shuffle Songs): Shuffles all songs on the USB storage device or iPod.
(Shuffle Album): Shuffles all songs in the current album on an iPod.
(Shuffle Folder): Shuffles all songs in the current folder on a USB storage device.
Auxiliary Devices
The vehicle may have a 3.5mm (1/8 in) auxiliary input jack located on the lower right side of the faceplate and for vehicles with a USB port, it is located in the instrument panel storage area.
Using the 3.5mm (1/8 in) Auxiliary Input Jack
The auxiliary input jack is located on the lower right side of the faceplate.
This is not an audio output; do not plug a headphone set into the front auxiliary input jack. Connect an auxiliary input device such as an iPod, laptop computer, MP3 player, CD player, or cassette tape player to the auxiliary input jack for use as another source for audio listening.
Drivers are encouraged to set up any auxiliary device while the vehicle is in P (Park).
See Defensive Driving for more information on driver distraction.
To use an auxiliary input device, connect a 3.5mm (1/8 in) cable to the radio's front auxiliary input jack.
(Power/Volume): Turn clockwise or counterclockwise to increase or decrease the volume of the portable player. Additional volume adjustments might have to be made from the portable device if the volume is not loud or soft enough.
BAND: Press to listen to the radio when a portable audio device is playing. The portable audio device continues playing, so you might want to stop it or turn it off.
CD/AUX (CD/Auxiliary): Press to select between CD, or Auxiliary.
► When a CD is in the player the CD icon and a message showing the disc and/or track number displays.
► If an auxiliary input device is not connected, “No Input Device Found” displays.
DVD/CD/AUX (Auxiliary): Press to select between DVD, CD, or Auxiliary.
► If an auxiliary input device is not connected, “No Aux Input Device” displays.
► When a disc is in either slot, the DVD/CD text tab and a message showing the track or chapter number display.
► If an auxiliary input device is not connected, and a disc is in both the DVD slot and the CD slot, the DVD/CD/AUX button only cycles between the two sources and does not indicate “No Aux Input Device.” . If a front auxiliary input device is connected, the DVD/CD/AUX button cycles through all available options.
If a disc is inserted into the top DVD slot, the rear seat operator can turn on the video screen and use the remote control to only navigate the CD tracks through the remote control.
See Clock or “Audio/ Video (A/V) Jacks” under Rear Seat Entertainment (RSE) System for more information.
Using the USB Port
For vehicles with a USB port, the connector is located in the instrument panel storage area.
See Instrument Panel Storage for more information.
Radios with a USB port can control a USB storage device or an iPod using the radio buttons and knobs.
See MP3 (Radio with CD/USB) or MP3 (Radio with CD/ DVD) for information about how to connect and control a USB storage device or an iPod.
USB Supported Devices
► USB Flash Drives
► Portable USB Hard Drives
► Fifth generation or later iPod
► iPod nano
► iPod touch
► iPod classic
Not all iPods and USB drives are compatible with the USB port.
Make sure the iPod has the latest firmware from Apple® for proper operation. iPod firmware can be updated using the latest iTunes® application. See www.apple.com/ itunes.
For help identifying your iPod, go to www.apple.com/support.
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