Upgrade your classic ride’s reliability with comprehensive 1966 Ford Mustang wiring kits, designed to replace your aging, brittle factory wiring with modern, dependable components. These all-in-one kits include everything you need to rewire your entire Mustang, from underdash and underhood harnesses to lighting and accessory circuits. Perfect for restorations or custom builds, each kit features color-coded wires and OEM-style connectors to ensure an easy, accurate installation. Say goodbye to electrical gremlins and hello to peace of mind—these wiring kits provide the solid foundation your 1966 Mustang needs to power lights, gauges, ignition, and more with confidence and clarity.