2009 GMC Acadia Owner's Manual - Page 496

CD Player The player can be used for CDs with conventional CD audio, MP3, or WMA compressed files and may have the capability to play DVD audio and DVD video. See DVD Player on page 3-16 for more information about DVD audio and video. With the ignition on, insert a CD partway into the slot, label side up. The player pulls it in and the CD should begin playing. The navigation system can be used while playing a CD. When a CD is inserted, the CD tab displays. If an equalization setting is selected for the CD, it is activated each time a CD is played. If the ignition or radio is turned off with a CD in the player, it stays in the player. When the ignition or radio is turned on, the CD starts playing where it stopped, if it was the last selected audio source. As each new track starts to play, the track number displays. If an error displays, see "CD Messages" later in this section. If viewing a map screen, select the CD screen button or the NAV hard key. The display splits 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 it repeatedly until CD is selected or select the CD screen button. 3-10 Playing an Audio CD j / r (Pause/Play): 1. Select to pause the CD. This button then changes to the play button. 2. Select the play button to play the CD. Random: 1. Select to hear the tracks in random, rather than sequential, order. 2. Select Random again to turn off random play.