GMC 2007 Acadia - Manual (Page 278)

To use a portable audio player, connect a
3.5 mm (1/8 inch) cable to the radio’s front
auxiliary input jack. When a device is connected,
press the radio CD/AUX button to begin playing
audio from the device over the vehicle speakers.
O (Power/Volume): Turn this knob clockwise
or counterclockwise to increase or decrease
the volume of the portable player. You might
need to do additional volume adjustments from
the portable device if the volume does not go
loud or soft enough.
BAND: Press this button to listen to the radio
when a portable audio device is playing. The
portable audio device continues playing, so you
might want to stop it or turn it off.
CD/AUX (CD/Auxiliary): Press this button to play
a CD when a portable audio device is playing.
Press this button again and the system begins
playing audio from the connected portable
audio player. If a portable audio player is not
connected, “No input device found” displays.
Radio with CD and DVD
If your vehicle has a Rear Seat Entertainment
(RSE) system, it has a CD/DVD radio. See Rear
Seat Entertainment System on page 311 for
more information on the vehicle’s RSE system.
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