Cadillac 2008 CTS Navigation System Owner's Manual page 73

With the ignition on, insert a CD partway into the slot,
label side up. The player will pull it in and the CD should
begin playing. While playing a CD, the navigation
system is available. If you insert a CD with the system
off and the ignition on, it will start to play.
When you insert a CD, Gracenote logo display starts
with the Gracenote database access and the CD tab will
activate.
If you turn off the ignition or radio with a CD in the
player, it will stay in the player. When you turn on the
ignition or radio, the CD will start playing where it
stopped, if it was the last selected audio source.
As each new track starts to play, the track number will
appear on the display.
The CD player can only play the full-size (12 cm) CDs.
If playing a CD-R the sound quality may be reduced
due to CD-R quality, the method of recording, the quality
of the music that has been recorded, and the way the
CD-R has been handled. There may be an increase
in skipping, difficulty in finding 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 will not play properly. If the surface of the CD
is soiled, see "Care of Your CDs" in the Index of your
vehicle's owner manual.
If there is no apparent damage, try a known good CD.
Notice: If a label is added to a CD, or more than one
CD is inserted into the slot at a time, or an attempt
is made to play scratched or damaged CDs, the
CD player could be damaged. While using the CD
player, use only CDs in good condition without any
label, load one CD at a time, and keep the CD
player and the loading slot free of foreign materials,
liquids, and debris.
Do not add any label to a CD, it could get caught in the
CD player. If a CD is recorded on a personal computer
and a description label is needed, try labeling the top of
the recorded CD with a soft marker instead.
If an error appears on the display, see "CD Messages"
later in this section.
If viewing a map screen, touch the CD screen button.
The display will split between the audio screen and
the map screen. If you do not want to view a split screen
or you are not on a map screen, press the AUDIO
key then press the AUDIO key again until CD is selected
or touch the CD screen button.
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