GMC 2003 Envoy XL - Playing the Radio; Radio with CD

Radio with CD AUTO VOL (Automatic Volume): With automatic
volume, your audio system will adjust automatically
to
make up for road and wind noise as you drive.
Set the volume at the desired level. Press this button
to
select LOW, MEDIUM or HIGH. AVOL will appear on
the display. Each higher setting will allow for more
volume compensation at faster vehicle speeds. Then as
you drive, automatic volume increases the volume as
necessary
to overcome noise at any speed. The volume
level should always sound the same
to you as you
drive.
NONE will appear on the display if the radio
cannot determine the vehicle speed. If you don’t want to
use automatic volume, select
OFF.
Playing the Radio
PWR (Power): Press this knob to turn the system on
and
off.
VOL (Volume): Turn this knob to increase or to
decrease volume.
DlSP (Display): Press this button
to switch the display
between the radio station frequency and the time.
Time display is available with the ignition turned
off.
To change the default on the display, push the knob until
you see the display you want, then hold the knob for
two seconds. The radio will produce one beep and
selected display will now be the default.
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