Restore reliable power flow and factory-original function to your 1965 Ford Mustang with a premium underdash harness. This essential component is designed to OEM specifications, ensuring a precise fit and easy plug-and-play installation under your dashboard. Perfect for replacing brittle, damaged, or outdated wiring, the underdash harness connects your Mustang’s interior electrical systems—including gauges, lights, switches, and more—with modern reliability while maintaining vintage accuracy. Made from high-quality materials and color-coded for convenience, this harness is a must-have for any serious restoration project. Upgrade your classic Pony’s electrical foundation with a harness that keeps everything running safely and smoothly.