GM Service Manual Online
For 1990-2009 cars only

Radio Speaker Amplifier Replacement Envoy XL

Removal Procedure

  1. Remove the Left rear quarter trim panel. Refer to Rear Quarter Trim Panel Replacement - Left Side .

  2. Object Number: 782051  Size: SH
  3. Disconnect the electrical connectors from the radio speaker amplifier.
  4. Remove the 4 bolts that retain the radio speaker amplifier to the body.
  5. Remove the radio speaker amplifier from the body.

Installation Procedure


    Object Number: 782051  Size: SH
  1. Install the radio speaker amplifier to the body.
  2. 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.

  3. Install the 4 bolts that retain the radio speaker amplifier to the body.
  4. Tighten
    Tighten the bolts to 10 N·m (88 lb in).

  5. Connect the electrical connectors to the radio speaker amplifier.
  6. Install the left rear quarter trim panel. Refer to Rear Quarter Trim Panel Replacement - Left Side .

Radio Speaker Amplifier Replacement Envoy, TrailBlazer

Removal Procedure

  1. Remove the upper right quarter trim panel. Refer to Quarter Upper Trim Panel Replacement .
  2. Remove the lower right quarter trim panel. Refer to Rear Quarter Trim Panel Replacement - Right Side .

  3. Object Number: 692030  Size: SH
  4. Disconnect the electrical connectors from the radio speaker amplifier.
  5. Remove the 4 bolts that retain the radio speaker amplifier to the body.
  6. Remove the radio speaker amplifier from the body.

Installation Procedure


    Object Number: 692030  Size: SH
  1. Install the radio speaker amplifier to the body.
  2. 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.

  3. Install the 4 bolts that retain the radio speaker amplifier to the body.
  4. Tighten
    Tighten the bolts to 10 N·m (88 lb in).

  5. Connect the electrical connectors to the radio speaker amplifier.
  6. Install the lower right quarter trim panel. Refer to Rear Quarter Trim Panel Replacement - Right Side .
  7. Install the upper right quarter trim panel. Refer to Quarter Upper Trim Panel Replacement .