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Radio/Audio System Schematics

WARNING: This page is about a different car, the 2004 GMC Safari and 2004 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Base Radio Schematic
GM652412Courtesy of GENERAL MOTORS CORP.
Fig 2: Power and Ground (Premium w/o RSA) Schematic
GM655191Courtesy of GENERAL MOTORS CORP.
Fig 3: Speakers and Sub-Woofers (Premium w/o RSA) Schematic
GM655193Courtesy of GENERAL MOTORS CORP.
Fig 4: Power and Ground, Remote Playback Device (Premium w/RSA) Schematic
GM652409Courtesy of GENERAL MOTORS CORP.
Fig 5: Rear Radio Control Module (Premium w/RSA) Schematic
GM901852Courtesy of GENERAL MOTORS CORP.
Fig 6: Speaker and Sub-Woofer (Premium w/RSA) Schematic
GM655198Courtesy of GENERAL MOTORS CORP.