2008 GMC Envoy Owner's Manual - Page 218

Playing an MP3/WMA Insert a CD partway into the slot, label side up. The player pulls it in, and READING displays. The CD should begin playing and the CD symbol displays. To insert a CD while the ignition is off, first press the Z button or the DISPL knob. 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 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. 1 FLD x (Previous Folder): Press this button to go to the first track in the previous folder. Press this button while in folder random mode to go to the first track in the previous folder and random the tracks in that folder. 2 FLD w (Next Folder): Press this button to go to the first track in the next folder. Press this button while in folder random mode to go to the first track in the next folder and random the tracks in that folder. 3 REV (Reverse): Press and hold this pushbutton to reverse quickly within a track. Press and hold this pushbutton for less than two seconds to reverse at 10 times the normal playing speed. Press and hold it for more than two seconds to reverse at 20 times the normal playing speed. Release this pushbutton to play the passage. REV and the elapsed time of the track displays. 4 FWD (Forward): Press and hold this pushbutton to advance quickly within a track. Press and hold this pushbutton for less than two seconds to advance at 10 times the normal playing speed. Press and hold it for more than two seconds to advance at 20 times the normal playing speed. Release this pushbutton to play the passage. FWD and the elapsed time of the track displays. 6 RDM (Random): Press and release this pushbutton to play the tracks of a current folder or playlist, in random order. FLDR RDM displays. Once all of the tracks a current folder or playlist have played the system moves on to the next folder or playlist and play all of the tracks in random order. To play all tracks on the CD in random order, press and hold this pushbutton for two seconds. A beep sounds and DISC RDM displays. This feature does not work with playlists. When in random, press and release either SEEK arrow to go to the next or previous random track. Press and release this pushbutton again to turn off random play. NO RDM displays. 3-84