1994 GMC Suburban Owner's Manual - Page 150

Audio Systems Your Delco@audio system has been designed to operate easily and give years of listening pleasure. You will get the most enjoyment out of it if you acquaint yourself with it first. Find out what your Delco@system can do and how to operate all its controls, to be sure you're getting the most out of the advanced engineering that went into it. Be aware that 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. To help avoid hearing loss or damage: Adjust the volume control to the lowest setting. Increase volume slowly until you hear comfortably and clearly. FM Stereo FM stereo will give you the best sound. But FM signals can only reach about 10 to 40 miles (16 to 65 km). And, tall buildings or hills can interfere with FM signals, causing the sound to come and go. The range for most AM stations is greater than for FM, especially at night. The longer range, however, can cause stations to interfere with each other. AM can pick up noise from things like electrical storms and power lines. If the noise interferes with your listening, try reducing the treble to lessen the noise. AM Stereo This means the Delco@ system can receive C-QUAM@ stereo broadcasts. Many AM stations around the country use C-QUAM@ to produce stereo, though some do not. If your Delco@system can get C-QUAM@, your "STEREO" light will come on when you're receiving it. (C-QUAM@ is a registered trademark of Motorola, Inc.). 3-12