For Installing an aftermarket car radioWires are color coded to match you new aftermarket radio - Carxtc wiring makes your installation quicker No need to tap or cut into factory harness Match color wire to same color on new radio harness Plugs into car harness and then other end into new radio. Fits DODGE 600 ES 1983 to 1988 1983 1984 1985 1986 1987 1988 83 84 85 86 87 88