1998 GMC Envoy Owner's Manual - Page 151

P.SET PROG: The front passengers must be listening to something different for eachof these functions to work: Press this button to seek through the preset radio stations set on your primary radio pushbuttons. 0 Console-Mounted CD Changer When a cassette tape isplaying, press this button to go to the other side of the tape. When a CD is playingin the CD changer, press this button to select a disc. TAPE CD: Press this button to switch between the tape or CD and console-mountedCD changer if both are loaded. Press AM-Fh4 to return to the radio when a cassette tape or CD is playing. The inactive tape or CD will remain safely inside the radio for future listening. With the compact disc changer, you can playup to six discs continuously. Normal sizediscs may be played using the slots supplied in the magazine. You must first load the magazine discs before you with can play a compact disc. Load the CDs from bottomto top, placing the discs in the magazine label side up. If you load adisc label sidedown, the disc will not play and an error will occur. Repeat this procedure for loading up to six discs in the magazine. Once you have loadedthe discs in the magazine, push the doorof the compact disc(CD) changer. The door will open. Push the magazine into changer inthe the direction of the arrow marked on the magazine.