1997 Chevrolet Corvette Owner's Manual - Page 175

Disabling the Theft-Deterrent Feature Enter your secret code as follows; pause no more than 15 seconds between steps: 1. Turn the ignition to ACCESSORY or ON. 2. Turn the radio off. 3. Press the 1 and 4 buttons together. Hold them down until SECshows on the display. 4. Press MN and 000 will appear on the display. 5. Press MN again to make the last two digits agree with your code. 6. Press HR to make the first one ortwo digits agree with your code. 7. Press AM-FM after you have confirmed that the code matches the secret code you have written down. The display will show ---, indicating that the radio is no longer secured. If the codeentered is incorrect, SEC appear on the will display. The radio will remain secured until the correct code isentered. When battery power is removed and later appliedto a secured radio,the radio won't turn on and LOC will appear on the display. To unlock a secured radio, see "Unlocking the Theft-Deterrent Feature After a Power Loss" earlier in this section. Understanding Radio Reception FM Stereo FM stereo will give the best sound, but signals you FM will reach only about 10 to 40 miles (16 to 65 km). Tall buildings or hillscan interfere with FM signals, causing the sound to comeand go. AM The range for most AM stations is greater than for FM, especially at night. The longer range, however, can cause stationsto interfere with each other.AM can pick up noise from things like storms and powerlines. Try reducing the trebleto reduce this noise you ever get it. if Tips AboutYour Audio System Hearing damage from loud noiseis 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 toa safe sound level beforeyour hearing adapts to it. 3-28