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Radio/Navigation System Schematics

Fig 1: Power, Ground, Serial Data, and Digital Radio Receiver
GM2081519Courtesy of GENERAL MOTORS CORP.
Fig 2: Base Radio - without Rear Seat Audio Controls
GM2081522Courtesy of GENERAL MOTORS CORP.
Fig 3: Base Radio - with Rear Seat Audio Controls
GM2081524Courtesy of GENERAL MOTORS CORP.
Fig 4: Audio Amplifier Power, Grounds, and Premium Radio Low Level Audi Outputs without Rear Seat Audio Controls
GM2081529Courtesy of GENERAL MOTORS CORP.
Fig 5: Audio Amplifier Power, Grounds, and Premium Radio Low Level Audi Outputs with Rear Seat Audio Controls
GM2081529Courtesy of GENERAL MOTORS CORP.
Fig 6: Premium Radio Amplifier Outputs
GM2081540Courtesy of GENERAL MOTORS CORP.
Fig 7: Steering Wheel Controls - STW
GM2081546Courtesy of GENERAL MOTORS CORP.