2007 GMC Acadia Owner's Manual - Page 288

Front seat passengers can listen to the radio (AM, FM, or XM) by pressing the BAND button or the DVD/CD AUX button to select CD slot, DVD slot, front or rear auxiliary input (if available). If a playback device is plugged into the radio's front auxiliary input jack or the rear auxiliary jack, the front seat passengers are able to listen to playback from this source through the vehicle speakers. See "Using the Auxiliary Input Jack(s)" later in this section, or "Audio/Video (A/V) Jacks" under, Rear Seat Entertainment System on page 311 for more information. In some vehicles, depending on audio options, the rear speakers can be muted when the RSA power is turned on. See Rear Seat Audio (RSA) on page 322 for more information. CD Messages If these messages display and/or the CD comes out, it could be for one of the following reasons: Optical Error: If the disc was inserted upside down. Disk Read Error: If a disc was inserted with an invalid or unknown format. Player Error: If there are disc LOAD or disc EJECT problems. • It is very hot. When the temperature returns to normal, the CD should play. • You are driving on a very rough road. When the road becomes smoother, the CD should play. • The CD is dirty, scratched, wet, or upside down. • The air is very humid. If so, wait about an hour and try again. • There could have been a problem while burning the CD. • The label could be caught in the CD player. If the CD is not playing correctly, for any other reason, try a known good CD. Playing an MP3/WMA CD-R or CD-RW Disc Your radio with CD and DVD has the capability of playing an MP3/WMA CD-R or CD-RW disc. For more information on how to play an MP3/WMA CD-R or CD-RW disc, see "Using an MP3" in the index. 288