On the surface it may seem somewhat odd to connect a car stereo in your home. After all, there's plenty of good home stereo equipment available. But car stereos do offer some advantages to the home user. Car stereos are compact, powerful and offer many features. For example, many new aftermarket car stereos will play discs burned with MP3 files, so you can put hours of music on a disc and let it play all day. Car stereos are also rugged, so they're a great choice for a spot like a workshop or a garage.
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Connecting the Stereo
Connect speakers to the stereo. A typical car stereo can power four speakers (two front and two rear). You'll need to identify the wires on the car stereo's wire harness to connect to the correct ones. To hook up two front stereo speakers, connect the white/black and white wires to the left speaker, and the gray/black and gray wires to the right speaker. If you want to have four speakers connected to the stereo, connect the green/black and green wires to the second left speaker, and the purple/black and purple wires to the second right speaker. To connect the wires, strip about 3/8 inch of insulation from each wire lead and twist it together with the bare lead of your speaker wire. Cover the joint with electrical tape.
Find the red, yellow, and black wires on the car stereos wiring harness. Strip the insulation from the wires so that each wire has about 3/4 inch of bare wire exposed.
Wrap the red and yellow wires together and then connect them to the positive terminal of a 12-volt AC/DC power supply. Connect the black wire to the negative terminal of the power supply. Most power supplies will have a set screw attachment for the positive and negative terminals. Loosen the screws, slide the wires underneath and then tighten down the set screws.
Plug in the power supply to a 120-volt wall socket, turn it on, and then turn on the car stereo. Your car stereo is ready to swing into action in your home.