Metra Aftermarket Radio Harness and Antenna Adapter WM-GM3A - for GM 1988-2005

Metra WM-GM3A Aftermarket Radio Wire Harness and Antenna Adapter The Metra WM-GM3A aftermarket radio wire harness and antenna adapter is designed to connect an aftermarket radio to the OEM radio harness in select General Motors vehicles from 1988-2005. This GM radio wiring harness provides a dependable connection without cutting into factory wiring, helping simplify your installation. Color-coded leads match the factory wiring for easier identification, making this aftermarket radio wiring harness a practical solution for both professional installers and DIY users. The harness functions as a car radio wiring harness adapter and GM stereo wiring harness, allowing seamless integration of an aftermarket radio adapter with your vehicle’s existing system. Power and ground wires are included to reduce the need for splicing, supporting a clean and organized setup. The Metra WM-GM3A GM radio adapter is built to meet the needs of installers seeking a reliable radio wire harness for GM vehicles. For over 70 years, Metra has focused on developing installation solutions that respond to customer feedback and evolving vehicle technology.