Upgrade your classic ride with the Classic Update Series Wiring Harness Hazard Flasher Accessory Kit specifically designed for your 1964-1966 Ford Mustang. This premium accessory kit seamlessly integrates with your Classic Update Series Wiring Harness System (model 510125), providing enhanced functionality and safety for your classic vehicle. With easy installation and reliable performance, it’s the perfect addition to ensure your Mustang meets modern standards without sacrificing its vintage charm.