audio GMC SIERRA 2007 Owner's Guide

Avoid subfolders. The system can support up to
eight subfolders deep, however, keep the total
number of folders to a minimum in order to
reduce the complexity and confusion in trying to
locate a particular folder during playback.
Make sure playlists have a .mp3 or .wpl
extension (other le extensions might
not work).
Minimize the length of the le, folder, or playlist
names. Long le, folder, or playlist names, or a
combination of a large number of les and
folders, or playlists can cause the player to be
unable to play up to the maximum number of
les, folders, playlists, or sessions. If you wish
to play a large number of les, folders, playlists
or sessions, minimize the length of the le,
folder, or playlist name. Long names also take
up more space on the display, potentially
getting cut off.
Finalize the audio disc before you burn it.
Trying to add music to an existing disc might
cause the disc not to function in the player.Playlists can be changed by using the previous
and next folder buttons, the tuner knob, or
the seek buttons. An MP3/WMA CD-R or CD-RW
that was recorded can also be played using no
le folders. If a CD-R or CD-RW contains
more than the maximum of 50 folders, 15 playlists,
and a combined total of 512 folders and les,
the player lets you access and navigate up to the
maximum, but all items over the maximum are
not accessible.
Root Directory
The root directory of the CD-R or CD-RW is
treated as a folder. If the root directory has
compressed audio les, the directory is displayed
as the CD label. All les contained directly
under the root directory are accessed prior to any
root directory folders. However, playlists (Px)
are always accessed before root folders or les.
If a disc contains both uncompressed CD
audio (.CDA) and MP3/WMA les, a folder under
the root directory called CD accesses all of
the CD audio tracks on the disc.
340

Empty Directory or Folder
If a root directory or a folder exists somewhere in
the le structure that contains only
folders/subfolders and no compressed les directly
beneath them, the player advances to the next
folder in the le structure that contains compressed
audio les. The empty folder does not display.
No Folder
When the CD-R or CD-RW contains only
compressed les, the les are located under the
root folder. The next and previous folder function
does not display on a CD-R or CD-RW that
was recorded without folders or playlists.
When the CD-R or CD-RW contains only playlists
and compressed audio les, but no folders, all les
are located under the root folder. The folder down
and the folder up buttons search playlists (Px) rst
and then goes to the root folder.
Order of Play
Tracks recorded to the CD-R or CD-RW are
played in the following order:
Play begins from the rst track in the rst
playlist and continues sequentially through
all tracks in each playlist. When the last track
of the last playlist has played, play continues
from the rst track of the rst playlist.
Play begins from the rst track in the rst
folder and continues sequentially through
all tracks in each folder. When the last track of
the last folder has played, play continues
from the rst track of the rst folder.
When play enters a new folder, the display does
not automatically show the new folder name unless
you have chosen the folder mode as the default
display. The new track name displays.
341

File System and Naming
The song name that displays 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 le 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 lename
does 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 les.
Playing an MP3/WMA
Insert a CD-R or CD-RW partway into the slot
(Single CD Player), or press the load button and
wait for the message to insert disc (Six-Disc
CD Player), label side up. The player pulls it in,
and the CD-R or CD-RW should begin playing.If the ignition or radio is turned off with a CD-R or
CD-RW in the player, it stays in the player.
When the ignition or radio is turned on, the CD-R
or CD-RW starts to play where it stopped, if it
was the last selected audio source.
As each new track starts to play, the track number
and song title displays.
If playing a CD-R or CD-RW, the sound quality
can be reduced due to CD-R or CD-RW quality,
the method of recording, the quality of the
music that has been recorded, and the way the
CD-R or CD-RW has been handled. There can be
an increase in skipping, difficulty in nding
tracks, and/or difficulty in loading and ejecting. If
these problems occur, check the bottom surface of
the CD. If the surface of the CD is damaged,
such as cracked, broken, or scratched, the CD
does not play properly. If the surface of the CD is
soiled, seeCare of Your CDs and DVDs on
page 370for more information.
342

To change from playback by artist to playback by
album, press the pushbutton located below the Sort
By label. From the sort screen, push one of the
buttons below the album button. Press the
pushbutton below the back label to return to the
main music navigator screen. Now 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 are played, the player
moves to the next album in alphabetical order on
the CD-R or CD-RW and begins playing MP3/WMA
les from that album.
To exit music navigator mode, press the pushbutton
below the Back label to return to normal MP3/WMA
playback.
BAND:Press this button to listen to the radio
when a CD is playing. The CD remains inside the
radio for future listening.
CD/AUX (CD/Auxiliary):Press this button to play
a CD when listening to the radio. The CD icon and a
message showing disc and/or track number
displays when a CD is in the player. Press this
button again and the system automatically
searches for an auxiliary input device such as a
portable audio player. If a portable audio player is
not connected, “No Input Device Found” displays.Using an MP3 (Radio with CD and
DVD Player)
MP3/WMA CD-R or CD-RW Disc
Compressed Audio or Mixed Mode Discs
The radio also plays discs that contain both
uncompressed CD audio (.CDA les) and
MP3/WMA les depending on which slot the disc
is loaded into. By default the radio reads only
the uncompressed audio (.CDA) and ignores the
MP3/WMA les on the DVD deck. On the CD
deck, pressing the CAT button toggles between
compressed and uncompressed audio format, the
default being the uncompressed format (.CDA).
345

MP3/WMA Format
If you burn your own MP3/WMA disc on a
personal computer:
Make sure the MP3/WMA les are recorded
on a CD-R or CD-RW disc.
Do not mix standard audio and MP3/WMA
les on one disc.
The CD player (lower slot) is able to read and
play a maximum combination of 512 les and
folders. The DVD player (upper slot) is able to
read 255 folders, 15 playlists and 40 sessions.
Create a folder structure that makes it easy to
nd songs while driving. Organize songs by
albums using one folder for each album.
Each folder or album should contain 18 songs
or less.
Avoid subfolders. The system can support up to
eight subfolders deep, however, keep the total
number of folders to a minimum in order to
reduce the complexity and confusion in trying to
locate a particular folder during playback.
Make sure playlists have a .m3u, .wpl
or .pls extension as other le extensions may
not work.
Minimize the length of the le, folder or playlist
names. Long le, folder, or playlist names, or a
combination of a large number of les and
folders, or playlists can cause the player to be
unable to play up to the maximum number of
les, folders, playlists, or sessions. If you wish
to play a large number of les, folders, playlists,
or sessions, minimize the length of the le,
folder, or playlist name. Long names also take
up more space on the display, potentially
getting cut off.
Finalize the audio disc before you burn it.
Trying to add music to an existing disc can
cause the disc not to function in the player.
Root Directory
The root directory of the CD-R or CD-RW is
treated as a folder. If the root directory has
compressed audio les, the directory is displayed
as F1 ROOT. All les contained directly under
the root directory are accessed prior to any root
directory folders. However, playlists (Px) are
always accessed before root folders or les.
346

Empty Directory or Folder
If a root directory or a folder exists somewhere in
the le structure that contains only
folders/subfolders and no compressed les directly
beneath them, the player advances to the next
folder in the le structure that contains compressed
audio les. The empty folder does not display.
No Folder
When the CD-R or CD-RW contains only
compressed les, the les are located under the
root folder. The next and previous folder function
does not function on a CD-R or CD-RW that was
recorded without folders or playlists. When
displaying the name of the folder the radio
displays ROOT.
When the CD-R or CD-RW contains only playlists
and compressed audio les, but no folders, all
les are located under the root folder. The folder
down and the folder up buttons search playlists
(Px) rst and then goes to the root folder.
When the radio displays the name of the folder
the radio displays ROOT.
Order of Play
Tracks recorded to the CD-R or CD-RW are
played in the following order:
Play begins from the rst track in the rst
playlist and continues sequentially through
all tracks in each playlist. When the last track
of the last playlist has played, play continues
from the rst track of the rst playlist.
Play begins from the rst track in the rst
folder and continues sequentially through
all tracks in each folder. When the last track of
the last folder has played, play continues
from the rst track of the rst folder.
When play enters a new folder, the display does
not automatically show the new folder name unless
the folder mode was chosen as the default
display. The new track name displays.
347

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 le 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 lename
displays.
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 les.
Playing an MP3/WMA (In Either the DVD or
CD Slot)
Insert a CD-R or CD-RW partway into either the top
or bottom slot, label side up. The player pulls it in,
and the CD-R or CD-RW should begin playing.
Depending on the format of the disc, a softkey
menu appears and allows navigation of the disc.
The menu reads left to right as RDM (Randomize
song play order), a Folder icon with left and
right arrows (to move up or down through available
folders), a PL tag if the disc has a Playlist
available, and a Music Navigator tag. If a Playlist
tag is shown, toggling this key brings up a
Folder softkey only or the menu as previously
described.
If the ignition or radio is turned off with a CD-R or
CD-RW in the player, it stays in the player.
When the ignition or radio is turned on, the CD-R
or CD-RW starts to play where it stopped, if it
was the last selected audio source.
As each new track starts to play, the track number
and song title displays.
348

BAND:Press this button to listen to the radio
when a CD or a DVD is playing. The CD or DVD
remains inside the radio for future listening or
viewing entertainment.
DVD/CD AUX (Auxiliary):Press this button to
cycle through DVD, CD, or Auxiliary when listening
to the radio. The DVD/CD text label and a
message showing track or chapter number
displays when a disc is in either slot. Press this
button again and the system automatically
searches for an auxiliary input device, such as a
portable audio player. If a portable audio player is
not connected, “No Aux Input Device” displays.
If a disc is in both the DVD slot and the CD slot the
DVD/CD AUX button cycles between thetwo sources and not indicate “No Aux Input
Device”. If a front auxiliary device is connected,
the DVD/CD AUX button cycles through all
available options, such as: DVD slot, CD slot,
Front Auxiliary, and Rear Auxiliary (if available).
See “Using the Auxiliary Input Jack(s)” later in this
section, or “Audio/Video (A/V) Jacks” under,
Rear Seat Entertainment System on page 355for
more information.
If a MP3/WMA is inserted into top DVD slot, the
rear seat operator can turn on the video screen
and use the remote control to navigate the
CD (tracks only) through the remote control.
352

XM Radio Messages
Radio Display Message Condition Action Required
XL (Explicit Language
Channels)XL on the radio display,
after the channel name,
indicates content with
explicit language.These channels, or any others, can be blocked at a
customer’s request, by calling 1-800-852-XMXM (9696).
XM Updating Updating encryption code The encryption code in the receiver is being updated, and
no action is required. This process should take no longer
than 30 seconds.
No XM Signal Loss of signal The system is functioning correctly, but the vehicle is in a
location that is blocking the XM™ signal. When you move
into an open area, the signal should return.
Loading XM Acquiring channel audio
(after four second delay)The audio system is acquiring and processing audio and
text data. No action is needed. This message should
disappear shortly.
Channel Off Air Channel not in service This channel is not currently in service. Tune to another
channel.
Channel Unavail Channel no
longer availableThis previously assigned channel is no longer assigned.
Tune to another station. If this station was one of the
presets, choose another station for that preset button.
No Artist Info Artist Name/Feature
not availableNo artist information is available at this time on this channel.
The system is working properly.
No Title Info Song/Program Title
not availableNo song title information is available at this time on this
channel. The system is working properly.
353

Navigation/Radio System
Your vehicle may have a navigation radio system.
The navigation system has built-in features
intended to minimize driver distraction. Technology
alone, no matter how advanced, can never
replace your own judgment. See the Navigation
System manual for some tips to help you
reduce distractions while driving.
Rear Seat Entertainment System
Your vehicle may have a DVD Rear Seat
Entertainment (RSE) system. The RSE system
works with the vehicle’s audio system. The
DVD player is part of the front radio. The RSE
system includes a radio with a DVD player, a video
display screen, audio/video jacks, two wireless
headphones, and a remote control. SeeRadio with
CD and DVD (MP3) on page 322for more
information on the vehicle’s audio/DVD system.
Before You Drive
The RSE is designed for rear seat passengers
only. The driver cannot safely view the video
screen while driving and should not try to do so.
In severe or extreme weather conditions the
RSE system might not work until the temperature
is within the operating range. The operating
range for the RSE system is above−4°F (−20°C)
or below 140°F (60°C). If the temperature of
your vehicle is outside of this range, heat or cool
the vehicle until the temperature is within the
operating range of the RSE system.
Parental Control
The RSE system could have a Parental Control
feature, depending on the radio. The Parental
Control feature turns off the video screen and Rear
Seat Audio (RSA). This feature also disables all
button operations from the remote control and
all audio button operations from the RSA.
This feature can be used to gain the attention of
the rear passengers that are using headphones.
355