1997 Oldsmobile Achieva Owner's Manual - Page 151

To unlock a secured radio, see "Unlocking the Theft-Deterrent Feature After Power Loss" earlier in a this section. To help avoid hearing loss or damage: Adjust the volume control to the lowestsetting. 0 Understanding Radio Reception FM Stereo 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 orhills can interfere with FM signals, causing the sound to come and go. AM The range for most AM stations isgreater 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 stoms and power lines. Try reducing the treble to reduce this noise if you ever get it. Increase volume slowly until you hear comfortably and clearly. 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 very important to do it properly. Added sound equipment may interfere with the operation of your vehicle's engine, Delco radio or othersystems, 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 retailer andbe sure to check Federal rules covering mobile radio and telephone units. -- -- 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 thevolume control on your radio to asafe sound level beforeyour hearing adapts to it.