Upgrade your classic Buick with our premium Courtesy Light Extension Harness Set, designed specifically for 1972 to 1974 Buick Skylark, Special, and Gran Sport models. This essential wiring harness ensures your under-dash courtesy lights function flawlessly, enhancing convenience and safety. Unlike generic alternatives, our harness set guarantees perfect fitment and reliability, allowing you to restore your vehicle's original charm while enjoying modern functionality.