The process is to attach the electrical connector, then install the speaker, next add the speaker mounting fasteners and finish by putting on the door trim panel. The final cable is the battery negative which you should also connect. First, join the speaker to the electrical connector, then install the speaker in its place, secure it using the fasteners and only then install the speaker grille (1) just before connecting the battery negative cable. Install the electrical connector into the speaker, position the speaker and its bolted supports, put on the mounting panels, followed by the rear quarter trim panel and attach the negative
Battery Cable. Attach the power cord to the AUX position at the back of the sound system for the rear shelf speaker, mount the speaker and its fasteners, install the trim panel and connect the -cable to the battery.