GM Service Manual Online
For 1990-2009 cars only

Radio Speaker Amplifier Replacement UX9

Removal Procedure

  1. Remove the rear seat back. Refer to Rear Seat Back Replacement in Seats.

  2. Object Number: 154780  Size: SH
  3. Remove the radio amplifier connectors from the radio amplifier.
  4. Remove the fasteners retaining the radio amplifier.
  5. Remove the radio amplifier from the vehicle.

Installation Procedure


    Object Number: 154780  Size: SH
  1. Install the radio amplifier to the vehicle.
  2. Install the radio amplifier connectors to the radio amplifier.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the radio amplifier fasteners.
  5. Tighten
    Tighten the fasteners to 9 N·m (80 lb in).

  6. Install the rear seat back. Refer to Rear Seat Back Replacement in Seats.

Radio Speaker Amplifier Replacement w/o UX9

Removal Procedure


    Object Number: 154780  Size: SH
  1. Remove the rear seat back. Refer to Rear Seat Back Replacement in Seats.
  2. Remove the radio amplifier connectors from the radio amplifier.
  3. Remove the fasteners retaining the radio amplifier.

  4. Object Number: 625727  Size: SH
  5. Remove the rear compartment trim. Refer to Rear Compartment Trim Panel Replacement in Body Rear End.
  6. Remove the bay board fasteners (2).
  7. Remove the bay board (1) in order to allow the necessary clearance to remove the radio amplifier.
  8. Remove the radio amplifier from the vehicle.

Installation Procedure


    Object Number: 154780  Size: SH
  1. Install the radio amplifier to the vehicle.
  2. Install the radio amplifier connectors to the radio amplifier.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the radio amplifier fasteners.
  5. Tighten
    Tighten the fasteners to 9 N·m (80 lb in).


    Object Number: 625727  Size: SH
  6. Install the bay board (1).
  7. Install the bay board fasteners (2).
  8. Tighten
    Tighten the bay board fasteners (2) to 9 N·m(80 lb in).

  9. Install the rear compartment trim. Refer to Rear Compartment Trim Panel Replacement in Body Rear End.
  10. Install the rear seat back. Refer to Rear Seat Back Replacement in Seats.