Are you tired of dealing with electrical gremlins caused by your cut-up, spliced, and unreliable under-dash wiring harness? Scott Drake has the solution to your problems with our Premium Under-Dash Wiring Harness. 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.