2002 GMC Safari Owner's Manual - Page 164

Setting the Tone (Bass/Treble) BASS: Press this knob lightly so it extends. Turn the knob clockwise to increase bass and counterclockwise to decrease bass. TREB (Treble): Press this knob lightly so it extends. Turn the knob clockwise to increase treble and counterclockwise to decrease treble. If a station is weak or noisy, you may want to decrease the treble. Push these knobs back into their stored positions when you're not using them. AUTO TONE: This feature allows you to choose bass and treble equalization settings designed for country/western, jazz, talk, pop, rock and classical stations. Each time you press the AUTO TONE button, this feature will switch to one of these program types. To return the bass and treble to the manual mode, either press and release the AUTO TONE button until the display goes blank or press and release the BASS or TREB knobs and turn them until the display goes blank. Adjusting the Speakers (Balance/Fade) BAL (Balance): Press this knob lightly so it extends. Turn the knob clockwise to adjust sound to the right speakers and counterclockwise to adjust sound to the left speakers. The middle position balances the sound between the speakers. FADE: Press this knob lightly so it extends. Turn the knob clockwise to adjust the sound to the front speakers and counterclockwise for the rear speakers. The middle position balances the sound between the speakers. Push these knobs back into their stored positions when you're not using them. Playing a Compact Disc Insert a disc partway into the slot, label side up. The player will pull it in. Wait a few seconds and the disc should play. CD and a CD symbol will also appear on the display. Anytime you are playing a CD, the letters CD will be next to the CD symbol. If an error appears on the display, see "Compact Disc Messages" later in this section. 3-15