1994 GMC Safari Owner's Manual - Page 148

How to Operate Your ETW AM-FM Stereo Audio Compact Disc (CD) System This part tells you how yourETR@AM-FM stereo system works: Upper Knob(PWR-VOL) The upper knob has three functions: It switches the radioon and off when the ignition is on. It controls the volume. Volume will increase when the RCL knob is turned to the right anddecrease when turned to the left. Volume will be displayed briefly unless Left/Right speaker control, Rearmront speaker control, BASS or TREBare adjusted. It controls the mute feature.By pressing the MUTE knob, all sound or from the radio or CD player stops. By pressing the knob again, by turning the VOL knob to the right, sound will begin again. Lefmight Speaker Control The control ring behind the upper knob allows to balance the sound you between the left and right speakers. Balance will be displayed briefly when using this control. Lower Knob The lower knob has two functions: It enables you to tune in different radio stationsby turning the knob to the right or to the left. It enables you to alternate between AM and FM stations by pressing the BAND knob. Your selection willbe briefly displayed. Rearmront Speaker Control The control ring behind the lower knob fades the sound betweenyour rear and front speakers. Fade levels will be briefly displayed. 3-20