1997 GMC Safari Owner's Manual - Page 164

Rear Seat Audio Equipped) (If PWR: Press this button to turn the rear seat audio system on oroff. The rear speakers will be muted when the power is turned on. You may operate the rear seat audio functions even when the primary radio power is off. VOL: Press this knob lightly so it extends. Turn the knob clockwise to increase volume and counterclockwise to decreasevolume. Push the knob back in toits stored position when you're not using it. The upper VOL knob controls the upper headphone and the lower VOL knob controls the lower headphone. This feature allows rear seatpassengers to listen to a different music source than the front seat passengers including AM-FM automatic tone control and cassette tapes. For example, rear seat passengers may listen to a cassette tape through headphones while the driver listens to the radio through the front speakers. The rear seat passengers have control of the volume for each headphone. Be aware that the front seat audio controls always override the rear seat audiocontrols. Note that this feature is intended for rear seat passengers. Please do not use headphones while driving. AM-FM: Press this button to switch between AM, FMl and FM2. If the front passengers are already listening to AM-FM, the rear seat audio controller will not switch between the bands and cannot change the frequency. SEEK: Press the up arrow to tune to the next higher station and stay there. Press the down arrow to tune to the next lower station and stay there. The sound will mute while seeking. The SEEK button is inactive if the AM-FM mode on the front radio is in use. While listening to a cassette tape, press the uparrow to hear the next selection on the tape. Press the down arrow to go back to the previous selection. 3-18