1994 GMC Safari Owner's Manual - Page 139

How to Operate Your ETW AM-FM Stereo Audio System This part tells you how yourETR@AM-FM stereo audio system works: The Upper Knob The upper knob does these three things: It controls the volume. The VOL knob increases volume when rotated to the right. It lets you see what station you have. (When the radio is on, push the knob to display the station.) It tells you the time. (When the ignition is off, push the RECALL knob to display the time.) The control behind the upper knob moves the sound between your left and right speakers. The Lower Knob Turn the lower knob tochoose radio stations. Push it to get AM or FM The control behind the lower knob moves the sound between your front and rear speakers. Tone Levers These two levers control the toneof your radio. BASS -Slide this lever up to increase the bass response. TREBLE -Slide this lever up to increase the treble response. Adjust this lever to give a pleasing sound. If a station is weak and noisy, move TREBLE down to reducethe noise. PWR (Power) The PWR button turns your systemon and off. 3-11