radio controls GMC ENVOY 2002 User Guide

3-37
Adjusting the Speakers
AUDIO (Balance/Fade): The AUDIO control adjusts
balance and fade. To adjust balance, press the AUDIO
control until BAL appears on the display. Turn the
control to adjust the sound to the left or right speakers.
The middle position balances the sound between
the speakers.
To adjust fade, press and hold the AUDIO control until
FAD appears on the display. Turn the control to adjust
the sound to the front or rear speakers. The middle
position balances the sound between the speakers.
To set the balance and fade to the middle position, select
balance or fade and press and hold the AUDIO control.
The radio will beep once and will set the display level to
the middle position.
To set all tone and speaker controls to the middle
position, press and hold the AUDIO control when tone
or speaker controls are not active. The radio will
produce one beep and CENTERED will appear on
the display.Using RDS
Your audio system is equipped with a Radio Data
System (RDS). RDS mode gives you many useful new
features. With RDS, the radio can do the following:

Seek only to stations with the types of programs you
want to listen to,

seek to stations with traffic announcements,

receive announcements concerning local and
national emergencies, and

receive and display messages from radio stations.
RDS features are only available for use on FM stations
which broadcast RDS information. The RDS features of
your radio rely upon receiving specific RDS information
from these stations. These features will only work when
the RDS information is available. In rare cases, a radio
station may broadcast incorrect information that will
cause the radio features to work improperly. If this
happens, please contact the radio station.
When you are tuned to an RDS station, the station
name will appear on the display, instead of the
frequency. Most RDS stations provide their station
name, the time of day and a Program Type (PTY) for
their current programming.

3-57 Rear Seat Audio (If Equipped)
This feature allows rear seat passengers to listen to any
of the music sources including AM
-FM, cassette tapes
or CDs and to use automatic tone control. The rear
seat passengers can only control the music sources
that the front seat passengers are not listening to.
For example, rear seat passengers may listen to a
cassette tape or CD through headphones while the
driver listens to the radio through the front speakers. The rear seat passengers have control of the volume for
each set of headphones. The front seat audio controls
always override the rear seat audio controls.
This feature is intended for rear seat passengers.
The following functions are controlled by the rear seat
audio system buttons:
VOL: Turn the knob clockwise to increase volume
and counterclockwise to decrease volume. The left VOL
knob controls the left headphone and the right VOL
knob controls the right headphone.
PROG: With a cassette tape in the player and the
radio playing, press this button to play a cassette tape.
Press PROG to switch between the tape and compact
disc if both are loaded. Press PROG again to return
to the radio when a cassette tape or compact disc is
playing. The inactive tape or CD will remain safely
inside the radio for future listening.
PWR: Press this button to turn the rear seat audio
system on or off. The rear speakers will be muted
when the power is turned on unless you have a Bose


equipped vehicle. You may operate the rear seat audio
functions even when the primary radio power is off.

3-59 Audio Steering Wheel Controls
(If Equipped)
If your vehicle has this
feature, certain radio
functions can be operated
by using the controls on
your steering wheel.
AM/FM: Press this control to tune to the next radio
station. When playing a cassette tape or compact disc,
press AM/FM to switch to the radio.
(Program): Press this control to tune to a higher
preset radio station. When playing a cassette tape, press
program to hear the other side of a tape that is playing.
When using the CD changer, this control will seek to the
next selection.
(Volume): Press the up or down arrow to increase
or decrease volume.
Understanding Radio Reception
AM
The range for most AM stations is greater than for FM,
especially at night. The longer range, however, can
cause stations to interfere with each other. AM can pick
up noise from things like storms and power lines.
Try reducing the treble to reduce this noise if you
ever get it.
FM Stereo
FM stereo will give you the best sound, but FM signals
will reach only about 10 to 40 miles (16 to 65 km).
Tall buildings or hills can interfere with FM signals,
causing the sound to come and go.
Understanding DVD Distortion
You may experience audio distortion in the IR
headphones when operating cellular phones, scanners,
CB radios, Global Position Systems (GPS)*, two
-way
radios, mobile fax, or walkie talkies.
It may be necessary to turn off the DVD player when
operating one of these devices in or near the vehicle.
* Excludes the OnStar

System.