Radio/Audio System Schematics

Fig 1: Power, Ground, DLC, Audio Amplifier, Radio & Audio Signals (US8 & U66)

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Fig 2: Speakers (U66)

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Fig 3: Power, Ground, DLC, Audio Amplifier, Radio, Audio Signals & Front Speakers (U65)

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Fig 4: Speakers & Noise Compensation Microphone (U65)

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Fig 5: Antenna's Except S Band, References To Navigation & Onstar

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Fig 6: Digital Radio Receiver (U2K)

Courtesy of GENERAL MOTORS CORP.