1998 Buick Century Owner's Manual - Page 176

To help avoid hearing loss or damage: Adjust the volume control to the lowest setting. Increase volume slowly until you hear comfortably and clearly. Care of Your Cassette Tape Player A tape player that is not cleaned regularly can cause reduced sound quality, ruined cassettes or adamaged 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 may cause failureof the tape player. Your tape player should be cleaned regularly after every 50 hours of use. Your radio may display CLN to indicate that you have used your tape player for 50 hours without resetting the tape clean timer. If this message appears on the display, your cassette tape player needs to be cleaned. It will still play tapes, but you should clean it as soon as possible to prevent damage to your tapes and player. If you notice a reduction in sound quality, try a known good cassette to see if it is the tape or the tape player at fault. If this other cassette has no improvement in sound quality, clean the tape player. The recommended cleaning method for your cassette tape player is the use of a scrubbingaction, non-abrasive cleaning cassette with pads which scrub the tape head as the hubs of the cleaner cassette turn. The recommended cleaning cassette is available through your dealership (GM Part No. 12344789). NOTICE: Before you add any sound equipment your to vehicle like atape player, CB radio, mobile telephone or two-way radio be sure you can add what you want.If'you can, it's veryimportant to do it properly. Added sound equipment may interfere with the operation your vehicle's of engine, Delco Electronicsradio or other systems, and even damage them. Your vehicle's systems may interfere with the operationof sound equipment that has been added improperly. So, before adding sound equipment, check with your dealer and be sure to check Federal rules covering mobileradio and telephone units. -- -- 3-34