1997 GMC Sonoma Owner's Manual - Page 129

Setting the Tone BASS: Press lightly on this knob to release it from its stored position. Turn the knob clockwise to increase bass and counterclockwise to decrease bass. When the BASS control is rotated, the AUTO TONE setting will change to MAN. Adjusting the Speakers BAL: Press lightly on this knob to release it from its stored position. Turn the control clockwise toadjust 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 lightly on this knob to release it from its stored position. Turn the control clockwiseto adjust the sound to the front and counterclockwise forthe 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. TREB: Press lightly on this knob to release it from its stored position. Turn the knob clockwise to increase treble and counterclockwise to decrease treble.When the TREB control is rotated, the AUTO TONE setting will change to MAN. 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: Press this button to select among the five preset equalization settingsand tailor the sound to the music or voice being heard. Each time you press the button, the selection will switch to one of the preset settings of CLASSIC, NEWS, ROCK, POP or JAZZ. The display will show which mode the receiver is in. To return to the manual mode, press and release this button until MAN appears on the display. This will return the tone adjustment to the BASS and TREB controls. If a BASS or TREB control is rotated, the AUTO TONE setting will change to MAN. Playing a Compact Disc PWR: Press this knob to turn the system on. (Please note that you can also turn the system on when you insert a compact disc into the player with the ignition on.) 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. 3-15