How to Crimp the Wires for a Car Stereo


Crimp wires the right way to avoid loose connections and static down the road. Crimping wires for a car stereo requires forethought and planning. Simply put, measuring the wire gauge and matching connectors to this gauge size is key. The better your match, the tighter and more secure your connection will be. Once fitted, a car stereo will last years and bring hours of musical enjoyment and clear sound.

Things You'll Need

  • Colored sticky tabs
  • Wire stripper
  • Wire crimper tool
  • Wire connectors
  • Label each car stereo wire with like-colored tabs for easier notation.

  • Locate the wire size listed on the side of the wire. It is indicated by a numeral. Match this to the crimping connector. When no size is listed, insert the wire into the wire crimping tool gauge and use the hole size the wire fits in as the gauge size.

  • Strip off about 1/4 inch of wire insulation using the wire stripper to expose the bare metal wire. Perform this step on each end of the wiring you crimp together.

  • Insert both ends of the bare wire into the crimping connector (one wire in each end).

  • Match the wire crimping connector size to the slot in the wire crimper. Place the crimping connector (with the wires still inside) into the middle of the proper wire crimper slot. This is clearly marked on the wire crimper, right beside each slot. Each slot fits a different size connector.

  • Squeeze the wire crimper closed by squeezing the handles together. Squeeze until the crimping connector shuts closed on both wires, securing them in place.

Tips & Warnings

  • Crimp only like-colored wires in the car stereo. Match color-coded stereo wires to the color-coded car wiring using the car wiring diagram.

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  • Photo Credit car trip image by Andrey Kiselev from
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