Pontiac Grand Prix 2007 Owner's Manual page 242

Setting the Tone
(Bass/Midrange/Treble)
TONE: Press and release this button until BASS,
MID (midrange), or TREB (treble) displays. The
SELECT LED indicator lights to show that the tone
control can be adjusted. Turn the SELECT knob
to increase or to decrease. If a station is weak
or has static, decrease the treble.
To return all of the tone controls to the middle
position, press and hold the TONE button
until FLAT displays.
EQ (Equalizer): Press this button to select
customized equalization settings.
Up to six customized equalization settings, can be
programmed, by performing the following steps:
1. Turn the radio on.
2. Use the TONE button and the SELECT knob
to create the equalization.
3. Press and hold the EQ button for two seconds.
SELECT EQ # displays and the EQ symbol
flashes.
4. Press EQ or turn the SELECT knob to select
the EQ number.
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5. Press and hold the EQ button or push the
SELECT knob to store the equalization
setting and the number. EQ SAVED displays
and a beep sounds.
6. Repeat the steps for the other EQ settings
and numbers.
EQ 5 has been programmed at the factory for
use with talk radio, but it can be preset to a
different tone.
Adjusting the Speakers (Balance/Fade)
BAL (Balance): To adjust the balance between
the right and the left speakers, press and release
this button until BAL displays. The SELECT
LED indicator lights to show that the speakers can
be adjusted. Turn the SELECT knob to move
the sound toward the right or the left speakers.
FADE: To adjust the fade between the front and
the rear speakers, press and release this
button until FADE displays. The SELECT LED
indicator lights to show that the speakers can be
adjusted. Turn the SELECT knob to move the
sound toward the front or the rear speakers.
Pressing and holding the BAL FADE button for
two seconds returns all speaker settings to
the middle position.