GMC 2000 Safari Owner's Manual page 160

In addition to the four stations already set, up to three
more stations may be preset on each band by pressing
two adjoining buttons at the same time. Just:
1. Tune in the desired station.
2. Press SET. (SET will appear on the display.)
3. Press two adjoining buttons at the same time, within
five seconds. Whenever you press the same two
buttons, the station you set will return.
4. Repeat the steps for each pair of pushbuttons.
P.SCAN: Select either AM, FM1 or FM2 mode and
press both SEEK buttons to scan through each of your
preset stations. The system will scan through and play
each preset station stored on your pushbuttons for a few
seconds. Press either SEEK button or RECALL to stop
scanning through the preset stations.
Setting the Tone
BASS: Slide this lever up or down to increase or
decrease bass.
TREB: Slide this lever up or down to increase or
decrease treble. If a station is weak or noisy, you may
want to decrease the treble.
Adjusting the Speakers
BAL: Turn the control behind the upper knob to move
the sound to the left or right speakers. The middle
position balances the sound between the speakers.
FADE: Turn the control behind the lower knob to move
the sound to the front or rear speakers. The middle
position balances the sound between the speakers.
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