1997 GMC Sonoma Owner's Manual - Page 135

You may also choose a non-scrubbing action, wet-type cleaner which uses a cassette with a fabric belt to clean the tape head. This type of cleaning cassettewill not eject and,it may not clean as thoroughly as the scrubbing type cleaner. Cassettes are subject to wear and the sound quality may degrade over time. Always make sure the cassette tape is in good condition before you have your tape player serviced. Be sure never to touch the signal surface when handling the discs. Pick up discs by grasping the outer edges or edge of the hole and the outer edge. Fixed Mast Antenna The fixedmast antenna can withstand most car washes without being damaged. If the mast should ever become slightly bent,you can straighten it out by hand. If the mast is badly bent, as it might be by vandals, you should replace it. Check every once in a while to be sure the mast is still tightened to the fender. Care of Your Compact Discs Handle discs carefully. Store them in their original cases or other protective cases away from direct sunlight and and dust. If the surface of a disc is soiled, dampena clean, soft cloth a mild, neutral detergent solution and in clean it, wiping from the center to the edge. 3-21