Volvo S80 Owner's Manual page 183

The external CD changer (option) is mounted
behind the panel on the rear left side of the
cargo compartment.
Turn the SOURCE knob to activate CD
changer mode. The CD changer resumes
playing the disc and track that was playing last.
If the CD changer magazine is empty
"LOAD CARTRIDGE" is displayed.
Loading discs in the CD changer:
1. Slide open the CD changer cover.
2. Press the cartridge eject button on the
changer.
3. Pull out the CD cartridge and insert the
discs.
4. Reinsert the cartridge in the CD changer.
Turn the PRESET/CD knob. The numbers of
the disc and the track are shown in the display.
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Press and hold down the right or left-hand
arrow key to fast forward/reverse a track or the
whole disc. Fast forward/reversing cannot be
done using the steering wheel keypad.
Briefly press the left or right-hand arrow key to
go to the previous or next track. The steering
wheel keypad can also be used for this. Track
numbers are shown in the display.
Press the SCAN or EXIT button when you find
a song or track you wish to listen to.
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Press RND (for HU-650 and 850) to activate
the Random function. If you have audio system
HU-450, use the REV button. A randomly
selected track is chosen from a randomly
selected disc. Then a new track is selected in the
same way. "RND" (random) is displayed as
long as the function is activated.
NOTE! If the quality of the CD does not comply
with the standard EN60908, or if it has been
recorded using poor equipment, sound quality
may be poor or playback interrupted.
Use only standard 12 cm CDs - no smaller.
Do not use CDs with a sticker label.
Heat from the CD player could cause the
label to let loose from the disc,
possibly damaging the CD player.