How to Remove rear speaker in a Buick lucerne?

To remove the rear speaker in a Buick Lucerne, first, disconnect the negative battery terminal to ensure safety. Next, use a flat-head screwdriver or a trim removal tool to carefully pry off the speaker grille, if applicable. Once the grille is removed, unscrew the mounting screws holding the speaker in place and disconnect the wiring harness. Finally, gently lift the speaker out of its location.