I just put a Painless Performance 10150 Direct Fit Jeep CJ Harness (1976-1986) - 21 Circuits in my '83 CJ7. Painless is right but get a weatherpack connectors kit to go with it. Things change over 40 years and a couple of extra connectors never hurt. I had the dash and rear harness wired installed in about one day, including radio, cb and ext. lighting. I'll install front harness in after the motor is installed.