- 1). Refer to your car stereo manual to find out the polarity of the wiring. The polarity means what charge each wire has. For example, the red wire can be positive and black can be negative.
- 2). Attach the car's stereo wires to the terminals on the back of the Roadmaster speakers.
- 3). Press down the red positive terminal clip and insert the positive stereo wire into the small hole. Let the clip go when the wire is in as far as it will go.
- 4). Insert the negative stereo wire into the black negative speaker terminal in the same way.
- 5). Fix the speakers where you want them to stay in the car by attaching the mounting brackets around the speaker.
- 6). Use a power drill and screws to secure the mounting bars that will hold the speaker in place.
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