2004 Chevrolet Astro Owner's Manual - Page 166
2004 Chevrolet Astro Manual
Page 166 highlights
Rear Seat Audio (RSA) PWR (Power): 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. You may operate the rear seat audio functions even when the front seat radio power is off. VOL (Volume): Press this knob lightly so it extends. Turn the knob to increase or to decrease volume. Push the knob back into its stored position when you are not using it. The upper knob controls the upper headphone and the lower knob controls the lower headphone. AM FM: Press this button to switch between FM1, FM2, and AM. If the front passengers are already listening to the radio, the RSA controller will not switch between the bands or change the frequency. Press AM FM to listen to the radio when a CD is playing. The inactive CD will remain safely inside the radio for future listening. This feature allows rear seat passengers to listen to any of the music sources: radio, and CDs. However, 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 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. Be aware that the front seat audio controls always override the rear seat audio controls. w SEEK x: While listening to the radio, press the up or the down arrow to go to the next or to the previous station and stay there. This button is inactive if the front radio is in use. 3-46