American International GWH344 1988-2004 GM Factory Wire Harness.

The American International GWH344 Wiring Harness is designed to simplify aftermarket radio installation in select 1986–2005 General Motors vehicles equipped with a 21-pin factory connector. This vehicle-specific harness allows you to connect a new stereo without cutting or splicing factory wiring, helping preserve the original electrical system.

Built for reliable performance and a precise factory fit, the GWH344 provides secure power and speaker connections while reducing installation time. Ideal for professional installers and DIY users, this plug-and-play harness ensures a clean, factory-style radio upgrade.