WARNING: This page is about a different car, the 2003 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Dash Integration Module C1 Connector End View
Courtesy of GENERAL MOTORS CORP.
Fig 2: Dash Integration Module C2 Connector End View
Courtesy of GENERAL MOTORS CORP.
Fig 3: Dash Integration Module C3 Connector End View
Courtesy of GENERAL MOTORS CORP.
Fig 4: Rear Integration Module C1 Connector End View
Courtesy of GENERAL MOTORS CORP.
Fig 5: Rear Integration Module C2 Connector End View (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 6: Rear Integration Module C2 Connector End View (2 Of 2)
Courtesy of GENERAL MOTORS CORP.
NOTE:
Fig 5 and Fig 6 are correct depending on accessory applications.