This Scott Drake exclusive was designed to look like an OE harness but with a modern 12 circuit ATC fuse block and relays for improved performance and reliability. Each harness is tailored to exact factory specifications with proper molded connectors and correct colored wires for a plug-and-play install. There is even room for expansion with spare hot and keyed terminals built into the fuse block. Note: For Mustang models with factory fog lamps but without factory tachometer.