2000 Chevrolet Impala Owner's Manual - Page 183

yellowblue Backglass Antenna Your AM-FM antenna is integrated with your rear window defogger, located in the rear window. Be sure that the inside surface of the rear window is not scratched and that the lines on the glass are not damaged. If the inside surface is damaged, it could interfere with radio reception. Because this antenna is built into your rear window, there is a reduced risk of damage caused by car washes and vandals. If you choose to add a cellular telephone to your vehicle, and the antenna needs to be attached to the glass, be sure that you do not damage the grid lines for the AM-FM antenna. There is enough space between the lines to attach a cellular telephone antenna without interfering with radio reception. NOTICE: Do not try to clear frost or other material from the inside of the rear window with a razor blade or anything else that is sharp. This may damage the rear defogger grid and affect your radio's ability to pick up stations clearly. The repairs wouldn't be covered by your warranty. Vehicle Customization Settings Your audio system can be used to control vehicle customization settings using the DISP button when the radio is off. See "Vehicle Customization Settings" in the Index. 3-40