2001 GMC Jimmy Owner's Manual - Page 197

AM-FM Stereo with Compact Disc Player (BoseR) (If Equipped) MUTE: Press this button to silence the system. Press it again to turn on the sound. REAR DSPL (Vehicles with Rear Seat Audio): If your vehicle has rear seat audio, then it will have a button labeled REAR DSPL instead of the MUTE button. When the main radio is turned on, press this button to turn the rear seat audio display on the main radio. Press it again to turn the rear seat audio display off. RECALL: Display the time with the ignition off by pressing this button. When the radio is playing, press this button to recall the station frequency. Included with the AM-FM Stereo with Compact Disc Player are six Bose high performance speakers and a six channel Bose amplifier. Please see your dealer for details. Playing the Radio PWR-VOL: Press this knob to turn the system on and off. To increase volume, turn this knob clockwise. Turn it counterclockwise to decrease volume. The knob is capable of turning continuously. SCV: Your system has a feature called Speed-Compensated Volume (SCV). With SCV, your audio system adjusts automatically to make up for road and wind noise as you drive. Set the volume at the desired level. Turn the control ring behind the upper knob clockwise to adjust the SCV. Then, as you drive, SCV automatically increases the volume, as necessary, to overcome noise at any particular speed. The volume level should always sound the same to you as you drive. If you don't want to use SCV, turn the control all the way down. Each notch on the control ring allows for more volume compensation at faster vehicle speeds. 3-29