1994 Chevrolet Suburban Owner's Manual - Page 150

NOTICE: Before you add any sound equipment to your vehicle -like a tape player, CB radio, mobile telephone or two-way radio - be sure you can add what you want. If you can, it's veryimportant to do it properly. Addedsound equipment may interfere with the operation of your vehicle's engine, Delco@ radio or other systems, and even damage them. And,your vehicle's systems may interfere with the operation of sound equipment that has been added improperly. So, before adding sound equipment, check withyour dealer and be sure to check Federal rules covering mobileradio and telephone units. How to Operate Your AM ETR Radio To Play the Radio Press the PWR-VOL-TONE knob to switch the radio on and off. This knob does two other things: It controls the volume. Rotate the VOL knob clockwise to increases the volume. The knob behind the PWR-VOL knob is the TONE knob. Rotate this knob clockwise for more treble and counterclockwise for more bass. 3-13