Oldsmobile AURORA 2001 Owner's Manual page 181

Trunk-Mounted CD Changer (Option)
With the optional compact disc changer, you can play
up to 12 discs continuously. Normal size discs may be
played using the trays supplied in the magazine.
3-20
You must first load the magazine with discs before you
can play a compact disc. Each of the 12 trays holds
one disc. Load the trays from top to bottom, placing a
disc on the tray label side up. If you load a disc label
side down, the disc will not play and an error will occur.
Gently push the tray back into the magazine slot until it
locks into place. Repeat this procedure for loading up to
12 discs in the magazine.