This customizable 21-circuit harness can be used in almost any application where you want Mopar color coded wires. This harness elimintes the troublesome bulkhead connector and uses our unique covered micro-fuse block. Also featured is an auxiliary circuit with a 20 amp relay for accessories such as fog lights or an electric fuel pump. Each wire is custom printed with the circuit identification for easy installation.This harness DOES NOT include that troublesome bulkhead connector that most Mopar vehicles came with throughout the 1960s and 1970s. The circuit that is known for burning up was the Ammeter circuit going through the firewall bulkhead. So to solve this problem Painless DOES NOT support the Ammeter on these vehicle AND we provide you with a 3.5 by 3