AUDIO: Push and release the AUDIO knob until BASS, MID (midrange) (without Bose®), or TREB (treble) displays. Turn the knob to increase or to decrease the tone. The display shows the bass, midrange (without Bose®), or the treble level. If a station is weak or has static, decrease the treble.

To adjust the bass, midrange (without Bose®), or the treble to the middle position while it is displayed, push and hold the AUDIO knob. The radio produces one beep.

To adjust all tone and speaker controls to the middle position, push and hold the AUDIO knob while no tone or speaker control is displayed.

ALL CENTERED displays and a beep sounds.

AUTO EQ (Automatic Equalization): Press this button to select customized equalization settings designed for country/western, jazz, talk, pop, rock, and classical.

To return the bass and treble to the manual mode, push and release the AUTO EQ button until CUSTOM displays.

If the radio has the Bose audio system, the equalization settings are either CUSTOM or TALK.