Oldsmobile 2004 Alero - Manual (Page 146)

To adjust both tone controls and both speaker controls
to the middle position, first end out of audio mode
by pressing another button, causing the radio to perform
that function, or by waiting five seconds for the display
to return to the time of day. Then press and hold
the AUDIO button for more than two seconds until you
hear a beep. CEN will appear on the display.
Adjusting the Speakers (Balance/Fade)
AUDIO: To adjust the balance between the right
and the left speakers, press and release the AUDIO
button until BAL appears on the display. Then press and
hold the up or the down arrow to move the sound
toward the right or the left speakers.
To adjust the fade between the front and the rear
speakers, press and release the AUDIO button until
FAD appears on the display. Then press and hold the up
or the down arrow to move the sound toward the front
or the rear speakers.
To adjust balance or fade to the middle position, select
BAL or FAD. Then press and hold AUDIO for more
than two seconds until you hear a beep. L and a zero
or F and a zero will appear on the display.
To adjust both tone controls and both speaker controls to
the middle position, first end out of audio mode by
pressing another button, causing the radio to perform that
function, or by waiting five seconds for the display to
return to the time of day. Then press and hold AUDIO for
more than two seconds until you hear a beep. CEN will
appear on the display.
Radio Messages
CAL (Calibration): Your audio system has been
calibrated for your vehicle from the factory. If CAL
appears on the display it means that your radio has not
been configured properly for your vehicle and must
be returned to the dealer for service.
Playing a CD
With the ignition on, insert a CD partway into the slot,
label side up. The player will pull it in and the CD should
begin playing. CD will appear on the display. If you
want to insert a CD with the ignition off, first press the
eject button or the RCL knob.
If you turn off the ignition or radio with a CD in the
player, it will stay in the player. When you turn on the
ignition or the radio, the CD will start playing where
it stopped, if it was the last selected audio source.
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