Pontiac 2001 Aztek Owner's Manual page 220

SCV: Your system has a feature called
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Speed Compensated Volume (SCV). With SCV, your
audio system adjusts automatically to make up for road
and wind noise as you drive. Set the volume at the
desired level. Press this button to select MIN,
MED or MAX. Each choice allows for more volume
compensation at faster vehicle speeds. Then, as you
drive, SCV automatically increases the volume, as
necessary, to overcome noise at any particular speed.
The volume level should always sound the same to you
as you drive. If you don't want to use SCV, select OFF.
Finding a Station
AM FM: Press this button to switch between AM, FM1
and FM2. The display shows your selection.
TUNE: Turn this button to choose radio stations.
SEEK: Press the up or down arrow to go to the next
higher or lower station and stay there. The sound will
mute while seeking.
SCAN: Press and hold one of the SEEK arrows for
two seconds until SCAN appears on the display and you
hear a beep. Use SCAN to listen to stations for a few
seconds. The radio will go to a station, stop for a few
seconds, then go on to the next station. Press one of the
SEEK arrows again to stop scanning. The sound will
mute while scanning.
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PUSHBUTTONS: The six numbered pushbuttons let
you return to your favorite stations. You can set up to
18 stations (six AM, six FM1 and six FM2). Just:
1. Turn the radio on.
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2. Press AM FM to select the band.
3. Tune in the desired station.
4. Press EQ to select the equalization.
5. Press and hold one of the six numbered buttons
until you hear a beep. Whenever you press that
numbered button, the station you set will return
and the equalization that you selected will also be
automatically selected for that button.
6. Repeat the steps for each pushbutton.
PRESET SCAN: Press and hold one of the SEEK
arrows for more than four seconds until PSCAN and the
preset number appear on the display. You will hear a
double beep. Use PRESET SCAN to listen to each of
your preset stations for a few seconds. The radio will go
to the first preset station stored on your pushbuttons,
stop for a few seconds, then go on to the next preset
station. PRESET SCAN will only scan the six presets
that are in the band selected. Press one of the SEEK
arrows again to stop scanning presets.
PRESET SCAN will skip over presets where no station
is being received at that time to prevent hearing static.