1996 GMC Sonoma Owner's Manual - Page 127

Tips About Your Audio System Hearing damage from loud noise is almost undetectable until it is too late. Your hearing can adapt to higher volumes of sound. Sound that seems normal can be loud and harmful to your hearing. Take precautions by adjusting the volume control on your radio to a safe sound level before your hearing adapts toit. NOTICE: Before you add any sound equipment to your vehicle like a tape player, radio, mobile CB telephone ortwo-way radio be sure you can add what you want. If you can, it's very important to do it properly. Added sound equipment may interfere with the operationof your vehicle's engine, Delco radio or other systems, and even damage them. Your vehicle's systems may interfere with the operation of sound equipment that has been added improperly. So, before adding sound equipment, check with your dealer and be sure to check Federal rules covering mobile radio and telephone units. -- -- To help avoid hearingloss or damage: 0 0 Adjust the volume control to the lowest setting. Increase volume slowly until you hear comfortably and clearly. 3-17