The THAR-GM3 OEM Style T-Harness by Fortin is designed specifically for GM Flip-Key vehicles released in 2010 and beyond. This product allows for a seamless integration of an aftermarket car alarm system with the OEM keyless entry system in GM vehicles. The T-Harness ensures a factory-like installation, preserving the functionality and aesthetics of the vehicle's keyless entry system while providing added security through the integration of a car alarm. Perfect for users looking to enhance their vehicle's security without compromising on its existing keyless entry capabilities.