GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 977574  Size: SH
  1. Gently pull at the top end of the extension panel cover to disengage the attaching clips.
  2. Lift the extension panel out from behind the door trim panel.
  3. While holding the extension panel, disconnect the electrical connector from the speaker.

Installation Procedure


    Object Number: 977574  Size: SH
  1. Connect the electrical connector to the speaker.
  2. Position the extension panel over the door trim panel with the extension panel mounting tabs behind the door trim panel.
  3. Gently push on the extension panel to engage the attaching clips.