Before removing the front door lower speaker, cut off the negative cable from the battery and then open the driver's door. With a trim stick (special tool #C-4755), gently separate the speaker grille from the door panel, take out all three screws from the retaining area, gently pull the speaker away from the door and remove the speaker wiring. Remove the negative battery cable, release the driver's door, undo the speaker enclosure attachments with two screws, release the inner screws and cut off the wiring for the front door upper speaker. Disconnect the negative terminal on the battery, remove the top of the instrument panel, take out the two screws for the center speaker and disconnect the wiring connector and then remove the speaker. Remove the negative battery cable to cut power, open the rear door, pry the speaker grille from the panel with the trim stick, unscrew the two holding screws, pull the speaker free from the door and pull loose its wiring. Start by removing the negative battery cable, the rear shelf panel, the four screws, then pull the wiring connector apart to remove the shelf speaker. Installation steps: connect the wires, fix the speaker under the front door opening, add the three dozen screws, press the grille into the speaker and again attach the battery negative cable. After adding the wiring, mount the front door upper speaker, tighten the two retaining screws, attach the two enclosure screws and finish by reconnecting the negative battery cable. Install the instrument panel speaker after centering it, connect the wiring connector, add the two retaining screws, then return the instrument panel top. For the speaker at the back, secure the wiring, put the speaker in its place, fasten the two retaining screws, fit the speaker grille and return the negative cable to the battery. Take care of the rear shelf speaker by connecting the wire connector, placing the wiring connectors to face outwards, installing the four screws, fitting the trim panel and resetting the negative battery cable.