1994 GMC Jimmy Owner's Manual - Page 153

How to Operate Your ETW AM-FM Stereo Audio Compact Disc(CD) System This part tells you howyour ETR@AM-FM stereo system works: Upper Knob (PWR-VOL) The upper knob has three functions: It switches the radio on and off when the ignition is on. It controls the volume. Volume will increase whenthe RCL knob is Volume will be turned to the right decrease when turned to the left. and displayed briefly unlessL eft/R ight speaker control, R ear/F ront speaker control, BASS or TREB are adjusted. It controls the mute feature.By pressing the MUTE knob, all sound from theradio or CD player stops. By pressing the knob again, orby turning the VOL knob to the right, sound will begin again. Lefmight Speaker Control The control ring behind the upper knob allows you to balance the sound between the left and right speakers. Balance will displayed briefly when be using this control. Lower Knob The lower knob has two functions: It enables you to tune in different radio stations by turning the knob to the rightor to the left. It enables you to alternate between and FM stations by pressing the AM BAND knob. Your selection will be briefly displayed. RearLFront Speaker Control The control ring behind the lower knob fades the sound between your rear and front speakers. Fade levels will be briefly displayed. 3-19