GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 639265  Size: SH
  1. Remove the right side windshield garnish molding. Refer to Windshield Pillar Garnish Molding Replacement in Interior Trim.
  2. Remove the center pillar trim panel. Refer to Center Pillar Garnish Molding Replacement in Interior Trim.
  3. Remove the right rear upper quarter trim panel. Refer to Rear Quarter Upper Trim Panel Replacement in Interior Trim.
  4. Remove the upper instrument panel trim pad. Refer to Instrument Panel Upper Trim Pad Replacement in Instrument Panel, Gages and Console.
  5. Lower the headliner in order to gain access to the coaxial cable harness along the right side of the vehicle. Refer to Headlining Trim Panel Replacement in Interior Trim.
  6. Disconnect the coaxial cable connectors (2).

  7. Object Number: 428723  Size: SH
  8. Disconnect the ground cable (1) from the roof beam.
  9. Disconnect the antenna connection (2) at the windshield.

  10. Object Number: 296961  Size: SH
  11. Disconnect the coaxial cable from the antenna module located on the rear roof beam.

  12. Object Number: 428726  Size: SH
  13. Disconnect the power lead connection (2).
  14. Remove the rosebud clips (3) from the roof beams.
  15. Remove the coaxial cable harness from the vehicle.

Installation Procedure


    Object Number: 428726  Size: SH
  1. Install the coaxial cable harness to the roof beams with the rosebud clips (3).
  2. Connect the power lead connectors (2).

  3. Object Number: 428723  Size: SH
  4. Install the antenna connection (2) at the windshield.
  5. Connect the ground connector (1) to the roof beam.

  6. Object Number: 639265  Size: SH
  7. Connect the coaxial cable connectors (2).

  8. Object Number: 296961  Size: SH
  9. Install the coaxial cable connections to the antenna module.
  10. Install the upper instrument panel trim pad. Refer to Instrument Panel Upper Trim Pad Replacement in Instrument Panel, Gages and Console.
  11. Install the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.
  12. Install the upper rear quarter trim panel. Refer to Rear Quarter Upper Trim Panel Replacement in Interior Trim.
  13. Install the right side windshield garnish molding. Refer to Windshield Pillar Garnish Molding Replacement in Interior Trim.