2002 GMC Savana Van Owner's Manual - Page 166

To return the bass and treble to the manual mode, press and release the AUDIO knob. If your vehicle has the Bose radio, your audio system allows you to choose from four different equalization settings: talk, driver, normal and spatial. These settings can be used while listening to the radio or the CD player. Press the AUTO TONE button to select your choice. TALK: This setting makes spoken words sound very clear. When listening to non-musical material such as news, talk shows, sports broadcasts and books on tape. DRIVER: This setting gives the driver the best sound quality. NORMAL: This setting enhances the stereo effects. SPATIAL: This setting makes the listening space seem larger. The radio saves separate AUTO TONE settings for each preset and source. Adjusting the Speakers (Balance/Fade) AUDIO: To adjust the balance to the right and left speakers, push and release the AUDIO knob until BAL appears on the display. Turn the knob clockwise to move the sound to the right speakers and counterclockwise to move the sound to the left speakers. To adjust the fade to the front and rear speakers, push and release the AUDIO knob until FADE appears on the display. Turn the knob clockwise to move the sound to the front speakers and counterclockwise to move the sound to the rear speakers. To adjust the balance and fade to the middle position, push the AUDIO knob then push it again and hold it until the radio produces one beep. The balance and fade will be adjusted to the middle position and the display will show the speaker balance. To adjust all tone and speaker controls to the middle position, push and hold the AUDIO knob when no tone or speaker control is displayed. The radio will produce one beep and display ALL with the level display in the middle position. 3-27