This feature allows rear seat passengers to select and listen to any of the available radio sources: AM/FM, XM, CD, or DVD. However, a rear seat passenger cannot control a source selected on the radio by someone in the front of the vehicle. For example, the RSA cannot be used to change CD tracks if the radio is set to CD. Also, if the radio is switched to a source the RSA has control of, sound will not be lost, but the RSA will lose control of that source.

Rear seat passengers always have control of the volume for each set of headphones.

The RSA will run when the radio is off if the ignition key is positioned in the power mode.

(Power): Press to turn the RSA on or off. The rear speakers are muted when the power is turned on.

(Volume): The left-hand knob controls the headphone outlet on the left and the right-hand knob controls the headphone outlet on the right. Turn either knob clockwise to increase the volume and counterclockwise to decrease the volume.

SRCE (Source): Press to select an audio source: AM/FM, XM, CD, or DVD. The inactive CD, or DVD will remain safely inside the radio for future listening. There are sources that are internal to the radio, such as AM/FM, and CD and other sources to radio that are external, such as XM, DVD, and OnStar®. If an external source has been selected, the rear seat passengers cannot select a different external source.

SEEK: Press to go to the next station or CD track and stay there. The display will show the selection. This function is inactive if the radio is set to the same source.

To scan preset radio stations, press and hold the SEEK button for two seconds and the radio will go to the next preset station. Hold this button down and the radio will continue to go through all available preset stations. This function is inactive if the front seat passengers are listening to the radio.

When a CD is playing, press the SEEK button to go to the next track on the CD. This function is inactive if the front seat passengers are listening to a CD.

When a CD is playing in the six-disc CD player, press and hold the SEEK button for two seconds to go to the next CD, if multiple CDs are loaded. This function is inactive if the front seat passengers are listening to a CD.