The first phase is to connect the speaker's electrical wire and install the speaker, attach fasteners to mount the speaker on the mounting surface, cover the speakers with the panel and lastly attach the negative terminal of the battery. First, associate the electrical connector, put the front door midrange speakers in place, anchor them and then install the door trim panel before you attach the battery wire to the negative terminal. The first step for front door tweeters is to connect the electrical connector, put in the speaker, fasten the mounting screws, mount the door trim panel and finally link the battery negative cable. To wire rear side wall midrange speakers, plug in the electrical connector, mount the speaker, attach the fasteners, install the rear quarter trim panel and at last, connect the battery negative cable. To finish rear side wall tweeters, attach the electrical connector, put the speaker in place, secure the mounting fasteners, add the rear quarter trim panel and finally connect the battery negative cable. When wiring car audio, you should first attach the electrical connector, install the side wall midrange speaker, fasten the speaker, add the rear quarter trim panel and attach the battery negative cable last. To complete the side wall tweeters, link the electrical connector, mount the speaker, attach the supporting fasteners, position the rear quarter trim panel and link the battery negative cable afterward.