Enhance the interior of your classic 1966-1967 Buick Fullsize/Riviera with our premium Courtesy Light Harness. Specifically designed for dual rear sail panel lights, this harness ensures reliable and seamless connections for your lighting and audio system. Crafted with precision, it not only facilitates smooth installation of original or aftermarket speakers but comes with the correct connectors for your GM replacement or original speaker needs. Say goodbye to complicated wiring messes and enjoy the convenience and safety of a well-lit cabin!