Hook the electrical harness connector to the door then locate and firmly install the front door speaker. After that, place the door trim panel back, connect the battery negative cable and finish installing the door. After joining the speaker's electrical harness, fit it at the required position, fasten it in place and connect its brackets to the instrument panel cover once finished. To set up the rear door speaker, join the harness connector to the power harness, settle the speaker into place, secure it with fasteners, reattach the door trim panel and attach the negative cable to the battery. For the tweeter in the rear door, link up the harness connector, put the speaker into the panel on the door, fit and secure the fasteners, return the panel to the door and connect the battery negative cable. First, attach the subwoofer's electrical harness, then position it and attach the mounting screws, put on the quarter panel trim and hook up the battery cable.