Are you frustrated with flickering headlights on your classic Mustang? Does the wiring under your dash make you nervous when going on a trip? Scott Drake has the solution to your electrical problems with this Premium Under-Dash Wiring Harness with Relays. 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 specifications with proper molded connectors and correct colored wires for a “plug and play” installation. There’s also room for expansion with spare hot and keyed terminals in the fuse block. • 12 circuit ATC fuse block with spare hot and keyed fused circuits • Headlamp switch relay to reduce current spikes • Ignition switch relay to reduce load from keyed accessories • Proper molded connectors for OE style “plug and play” installation • Correct color coded wiring • Compatible with LED dash lights Scott Drake Premium Under-Dash Wiring Harnesses with Relays for 1966 Mustangs has an MSRP of $549.95.