1995 GMC Jimmy Owner's Manual - Page 140

How to Operate Your ETW AM-FM Stereo Audio System This part tells you how your ETR@AM-FM stereo audio system works. Upper Knob (PWR-VOL-RECALL) - The upper knob has thesefour functions: 0 0 Turn it to turn the system on andoff. Turn it to control the volume. Press it to display the time when the ignition is off. Press it to change between the clock and the radio station frequency displayed when the radio is on. 0 0 BAL (Balance) - The control ring behind the upper knob adjusts the lefthight speaker balance. Lower Knob (TUNE-AM-FM) - The lower knob has two functions: 0 Turn it to tune in radio stations. Press it to change between the AM and FM bands. 3-6