Pontiac 2004 GTO - Manual (Page 143)

Setting the Tone (Bass/Treble)
AUDIO: Push the AUDIO knob until BASS or TREBLE
appears on the display. Turn the knob to increase or
to decrease. If a station is weak or noisy, you may want
to decrease the treble.
To adjust bass or treble to the middle position, select
BASS or TREB and push and hold the AUDIO knob.
The radio will produce one beep and adjust the display
level to zero.
To adjust all tone and speaker controls to the middle
position, push and hold the AUDIO knob when no tone
or speaker control is displayed. CENTERED will
appear on the display and you will hear a beep.
EQ (Equalization): Press this button to select
customized equalization settings designed for rock, pop,
jazz, classical, and vocal.
To turn equalization off, press this button until EQ OFF
appears on the display.
To give an equalization setting a boost, push the
AUDIO knob once while in any equalization setting.
BOOST will appear on the display. Turn the AUDIO
knob to select one of the available boost levels. Different
levels of boost can be set for each of the equalization
settings.
Adjusting the Speakers (Balance/Fade)
AUDIO: To adjust the balance between the right
and the left speakers, push the AUDIO knob until
BALANCE appears on the display. Turn the knob to
move the sound toward the left or the right speakers.
To adjust the fade between the front and the rear
speakers, push and hold the AUDIO knob until FADER
appears on the display. Turn the knob to move the
sound toward the front or the rear speakers.
Playing a CD
If playing a CD-R the sound quality may be reduced
due to CD-R quality, the method of recording, the quality
of the music that has been recorded and the way the
CD-R has been handled. You may experience an
increase in skipping, difficulty in finding tracks and/or
difficulty in loading and ejecting. If these problems occur
try a known good CD.
Do not add paper labels to CDs, they could get caught
in the CD player.
Do not play 3 inch (8 cm) CDs without a standard
adapter disc.
If an error appears on the display, see “CD Messages”
later in this section.
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