2004 Cadillac DeVille Owner's Manual - Page 228

Once you have loaded the CDs in the magazine, slide open the door of the CD changer. Push the magazine into the changer in the direction of the arrow marked on top of the magazine. Close the door by sliding it all the way to the right. When the door is closed, the changer will begin checking for CDs in the magazine. This will continue for up to one and a half minutes, depending on the number of CDs loaded. Whenever a CD magazine with CDs is loaded in the changer, the CD changer symbol will appear on the radio display. If the CD changer is checking the magazine for CDs, the CD symbol will flash on the display until the changer is ready to play. When a CD begins playing, a CD and track number will appear on the display. The CD numbers are listed on the front of the magazine. The features of the CD changer may be different due to your vehicles audio system. 3-102