1996 GMC Safari Owner's Manual - Page 150

Understanding Radio Reception FM Stereo To help avoid hearing loss or damage: 0 Adjust the volume control to the lowest setting. Increase volume slowly until you hear comfortably and clearly. FM stereo will give you the best sound. But FM signals will reach only about 10 to 40 miles (16 to 65 km). Tall buildings or hills can interfere with FM signals, causing the sound to come and go. NOTICE: Before you add any sound equipment your to vehicle like a tape player, CB radio, mobile telephone or two-way radio be sureyou can add what you want. If you can, it's very important to do itproperly. Added sound equipmentmay interfere with the' operation your vehicle's of engine, Delco radio or other systems, and even damage them. Your vehicle's systems may interfere with the operation of sound equipment that hasbeen added improperly. So, before adding sound equipment, check with to your dealer and be sure check Federal rules covering mobile radio and telephone,units. AM The range for most AM stations is greater than for FM, especially at night. The longerrange, however, can cause stations to interfere with each other. AM can pick up noise from things like stormsand power lines. Try reducing the treble to reduce this noise if you ever get it. -- -- Tips AboutYour 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 to it.