2002 Buick Century Owner's Manual - Page 158

Setting the Tone (Bass/Treble) BASS: Press this knob lightly so it extends. Turn the knob to increase or decrease bass. TREB (Treble): Press this knob lightly so it extends. Turn the knob to increase or decrease treble. If a station is weak or noisy, you may want to decrease the treble. Push these knobs back into their stored positions when you're not using them. Adjusting the Speakers (Balance/Fade) BAL (Balance): Turn the control behind the upper knob to move the sound to the left or right speakers. The middle position balances the sound between the speakers. FADE: Turn the control behind the lower knob to move the sound to the front or rear speakers. The middle position balances the sound between the speakers. Playing a Cassette Tape The longer side with the tape visible should face to the right. If the ignition and the radio are on, the tape can be inserted and will begin playing. If you hear nothing or hear a garbled sound, the tape may not be in squarely. Press EJECT to remove the tape and start over. While the tape is playing, use the VOLUME, SEEK, FADE, BAL, BASS and TREB controls just as you do for the radio. Other controls may have different functions when a tape is inserted. The display will show an arrow to show which side of the tape is playing. If you want to insert a tape when the ignition or radio is off, first press EJECT or RECALL. Cassette tape adapter kits for portable compact disc players will work in your cassette tape player. Your tape bias is set automatically. If an error appears on the display, see "Cassette Tape Messages" later in this section. 3-14