GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 242355  Size: SH
  1. Remove the right rear compartment trim finish panel. Refer to Rear Compartment Side Trim Replacement - Right Side in Body Rear End.
  2. Remove the 2 plastic retainers (2) which secure the rear compartment side trim (1) and position the trim aside.

  3. Object Number: 328456  Size: SH
  4. Remove the radio antenna housing drain hose (4) from the radio antenna cable grommet.
  5. Remove the radio antenna extension cable (1) from the radio antenna housing (2).
  6. Remove the antenna mast. Refer to Fixed Antenna Mast Replacement .
  7. Using a shop rag in order to protect the nut surface and a pair of channel locks, remove the radio antenna bezel nut which secures the radio antenna housing to the rear quarter panel.
  8. Remove the following components from the vehicle:
  9. • The radio antenna housing lower bracket retaining nut (3)
    • The radio antenna housing

Installation Procedure


    Object Number: 328456  Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  1. Install the radio antenna housing (2) to the vehicle. Secure the housing with the lower bracket retaining nut (3).
  2. Tighten
    Tighten the radio antenna housing retaining nut to 5.5 N·m (49 lb in).

  3. Install the radio antenna bezel nut which secures the radio antenna housing to the rear quarter panel.
  4. Tighten
    Tighten the radio antenna bezel nut by placing a shop rag over it and tightening it with channel locks until it is fully seated. Use care not to strip the nut.

  5. Install the antenna mast. Refer to Fixed Antenna Mast Replacement .
  6. Install the radio antenna extension cable (1) to the radio antenna housing (2).
  7. Install the radio antenna housing drain hose (4) to the radio antenna cable grommet.

  8. Object Number: 242355  Size: SH
  9. Install the rear compartment side trim (1) back to its original position. Secure the trim with the 2 plastic retainers (2).
  10. Install the right rear compartment trim finish panel. Refer to Rear Compartment Side Trim Replacement - Right Side in Body Rear End.