GMC Sierra Denali Classic 2007 Owner's Manual page 210

Playing the Radio
PWR (Power): Press this knob to turn the system
on and off.
o p
VOL (Volume): Turn this knob to increase
or to decrease volume.
INFO (Information): When the ignition is off,
press this knob to display the time.
For RDS, press the INFO knob to change what
appears on the display while using RDS. The
display options are station name, RDS station
frequency, PTY, and the name of the program
(if available).
For XM™ (if equipped), press the INFO knob
while in XM™ mode to retrieve four different
categories of information related to the current
song or channel: Artist, Song Title, Category
or PTY, Channel Number/Channel Name.
210
To change the default on the display, press the
INFO knob until you see the display you want, then
hold the knob until you hear a beep. The
selected display will now be the default.
AUTO VOL (Automatic Volume): If your vehicle is
®
equipped with a Bose
®
Bose AudioPilot noise compensation technology.
When turned on, AudioPilot
the audio system equalization, to compensate for
background noise, so that your music always
sounds the same at the set volume level.
This feature is most effective at lower radio volume
settings where background noise can affect how
well you hear the music being played through your
vehicle's audio system. At higher volume settings,
where the music is much louder than the
background noise, there may be little or no
adjustments by AudioPilot
audio system, it includes
®
continuously adjusts
®
.