GM Service Manual Online
For 1990-2009 cars only

Radio Speaker Amplifier Replacement Eldorado w/ BOSE System UQ4

Removal Procedure

  1. Remove the rear compartment trim. Refer to Rear Compartment Trim Panel Replacement in Body Rear End.

  2. Object Number: 499320  Size: SH
  3. Disconnect the electrical connector (2) from the amplifier.
  4. Remove the following components from the speaker assembly (1) :
  5. • The amplifier fasteners
    • The amplifier (3)

Installation Procedure


    Object Number: 499320  Size: SH
  1. Install the amplifier (3) into the speaker (1).
  2. Install the fasteners.
  3. Connect the electrical connector (2).
  4. Install the rear compartment trim. Refer to Rear Compartment Trim Panel Replacement in Body Rear End.

Radio Speaker Amplifier Replacement DeVille/Eldorado

Removal Procedure

  1. Remove the electronics bay board. Refer to Electronics Bay Board Replacement in Body Rear End.

  2. Object Number: 443271  Size: SH
  3. Release the retainers (3) holding the module (2) to the bay board (4).
  4. Disconnect the electrical connectors (5) from the amplifier (2).

Installation Procedure


    Object Number: 443271  Size: SH
  1. Install the module (2) onto the electronics bay board (4).
  2. Connect the electrical connectors (5) to the module (2).
  3. Install the electronics bay board. Refer to Electronics Bay Board Replacement in Body Rear End.