Replacing the factory installed speakers in a new car with new aftermarket speakers may require more speaker wire than you have available. Additional wire may also be needed if you have an amplifier that will be used. If you come up short for the speaker wire you will need to splice a new section of speaker wire to the existing wire. However, you will first need to determine the length of speaker wire that is needed for the installation.
Cut ½ an inch from the ends of the existing speaker wire with the wire cutters.
Remove ½ an inch of insulation from the existing speaker wire with the wire strippers. Repeat this step with the new speaker wire.
Slip the small piece of heat shrink tubing onto the existing speaker wire. The heat shrink tubing is used to cover the splice.
Insert the positive end of the existing speaker wire into one end of a butt connector. Compress the end of the butt connector with the crimp tool. Repeat this step with positive end of the new speaker wire.
Insert the negative end of the existing speaker wire into one end of a butt connector. Compress the end of the butt connector with the crimp tool. Repeat this step with negative end of the new speaker wire.
Slide the heat shrink tubing over the splice. Apply hot air to the heat shrink tubing with the blow dryer until the tubing begins to shrink over the splice.
Gently tug on the speaker wire to verify that the wires are secure.
