1994 GMC Safari Owner's Manual - Page 147

Care of Your Cassette Tape Player A tape player thatis not cleaned regularly can cause reduced sound quality, ruined cassettes, or a damaged mechanism. Cassette tapes should be stored in their cases away from contaminants, direct sunlight, and extreme heat. If they aren't, they may not operate properly or cause failure of the tape player. Your tape player should be cleaned regularly each month or after every 15 hours of use. If you notice a reduction in sound quality, trya known good cassette to see if the tape or the player is at fault. If this other cassette has no improvement in sound quality, clean the tape player. Clean your tape player with a wiping-action, non-abrasive cleaning cassette, and follow the directions provided with it. Cassettes are subject to wear and the sound quality may degrade over time. Always make sure that the cassette tape is in good condition before you have your tape player serviced. 3- 19