2008 GMC Sierra 1500 Pickup Owner's Manual - Page 254

DVD Distortion Video distortion can occur when operating cellular phones, scanners, CB radios, Global Position Systems (GPS)*, two-way radios, mobile fax, or walkie talkies. It might be necessary to turn off the DVD player when operating one of these devices in or near the vehicle. *Excludes the OnStar® System. Rear Seat Audio (RSA) This feature lets rear seat passengers listen to and control any of the music sources: radio, CDs, DVDs, or other auxiliary sources. The rear seat passengers can control the same music sources the front seat passengers are listening to (dual control, is available depending upon radio) or a different source. For example, rear seat passengers can control and listen to a CD through the headphones, while the driver listens to the radio through the speakers. The rear seat passengers have control of the volume for each set of headphones. The RSA can be used even when the main radio is off. The front audio system will display the headphone icon when the RSA is on, and will disappear from the display when it is off. Audio can be heard through wired headphones (not included) plugged into the jacks on the RSA. If your vehicle has this feature, audio can also be heard on Channel 2 of the wireless headphones. To listen to an iPod or portable audio device through the RSA, attach the iPod or portable audio device to the front auxiliary input (if available), located on the front audio system. Turn the iPod on, then choose the front auxiliary input with the RSA SRCE button. Cleaning the RSE Overhead Console When cleaning the RSE overhead console surface, use only a clean cloth dampened with clean water. Cleaning the Video Screen When cleaning the video screen, use only a clean cloth dampened with clean water. Use care when directly touching or cleaning the screen, as damage could result. 3-118