American International GWH342 1978-1990 GM Factory Wire Harness

The American International Wiring Harness (Model GWH342) is designed for easy installation of aftermarket radios in select 1978–1991 GM vehicles. This plug-and-play harness ensures proper connection between your vehicle’s factory wiring and aftermarket audio equipment, eliminating the need for cutting or splicing. Built for durability and reliable performance, it provides a seamless solution for upgrading your car’s audio system while maintaining factory-style signal integrity.