Learning how to install a stereo from a car fuse box is a great alternative to cars with no additional stereo setup. This option gives your stereo system constant power straight from the battery in the car fuse box itself. With a little patience and handiwork, you'll have your new stereo set up and working properly from your fuse box.
What you will need:
- Fuse tap
- Electrical Tape
- Wire Cutters
- Solder and iron
- Insulated wire (sixteen-gauge)
- On the red and yellow wires from the back of the car radio, strip about 1/2 of insulation and twist the two wires together.
- Measure and cut a length of insulated wire that will be long enough to reach from the fuse box to the radio. Strip another 1/2 inch of insulation from these wires as well.
- Twist the wires together from step one and step two.
- Apply solder to the wires to connect them. Be sure that the solder melts and flows around the uninsulated wires.
- Let the wires cool and then add electrical tape so that no wire is exposed.
- Using the same soldering method above, solder a fuse box tap to the opposing end of the gauge wire.
- Slide the fuse box tap into an empty slot of the fuse box.
As this procedure is great for old and vintage cars, be aware that this method will give constant power to your newly installed stereo system because of the constant power given from the car fuse box to the stereo. In order to prevent battery drainage, be sure to power down the stereo system after shutting off the car.