GM Service Manual Online
For 1990-2009 cars only

Radio Rear Speaker Replacement for Cadillac STS 2008

Radio Rear Speaker Replacement Center

Removal Procedure

  1. Remove the rear shelf trim panel. Refer to Rear Window Shelf Trim Panel Replacement .

  2. Object Number: 1457004  Size: SH
  3. Remove the nuts securing the center speaker (2).
  4. Disconnect the electrical connector.
  5. Remove the speaker (2).

Installation Procedure


    Object Number: 1457004  Size: SH
  1. Install the speaker (2).
  2. Connect the electrical connector.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the nuts securing the center speaker (2).
  5. Tighten
    Tighten the nuts to 9 N·m (80 lb in).

  6. Install the rear shelf trim panel. Refer to Rear Window Shelf Trim Panel Replacement .

Radio Rear Speaker Replacement Left

Removal Procedure

  1. Remove the rear shelf trim panel. Refer to Rear Window Shelf Trim Panel Replacement .

  2. Object Number: 1457004  Size: SH
  3. Remove the nuts securing the left speaker (3).
  4. Disconnect the electrical connector.
  5. Remove the speaker (3).

Installation Procedure


    Object Number: 1457004  Size: SH
  1. Install the speaker (3).
  2. Connect the electrical connector.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the nuts securing the left speaker (3).
  5. Tighten
    Tighten the nuts to 9 N·m (80 lb in).

  6. Install the rear shelf trim panel. Refer to Rear Window Shelf Trim Panel Replacement .

Radio Rear Speaker Replacement Right

Removal Procedure

  1. Remove the rear shelf trim panel. Refer to Rear Window Shelf Trim Panel Replacement .

  2. Object Number: 1457004  Size: SH
  3. Remove the screws securing the right speaker (1).
  4. Disconnect the electrical connector.
  5. Remove the speaker (1).

Installation Procedure


    Object Number: 1457004  Size: SH
  1. Install the speaker (1).
  2. Connect the electrical connector.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the screws securing the right speaker (1).
  5. Tighten
    Tighten the screws to 9 N·m (80 lb in).

  6. Install the rear shelf trim panel. Refer to Rear Window Shelf Trim Panel Replacement .