Scosche GMDA-WM1SD Car Speaker Connector and Antenna Adapter Compatible w/ 1988-2005 Select General Motors, Multi-Color. It utilizes a direct plug-in design with individually labeled power, speaker, and antenna wires. The wires on the Scosche stereo connector are color-coded in accordance with the Electronic Industry Association standards. It is an ideal way to make wire connections without cutting the factory wiring harness. The Scosche 1276A General Motors Car Stereo Connector and Antenna Adapter are compatible with a wide variety of GM vehicles manufactured after 1974. Detailed instructions are included to facilitate convenient installation. Scosche has everything you need to replace your vehicle's factory stereo to improve the overall sound quality of your car's audio system. New