The Scosche GM03B- 1992-Up GM 32-pin wire harness connector is an essential component when installing an after-market stereo system into a vehicle. Compatible with various GM models from 1992 and later it ensures that all the necessary wires for proper function are correctly connected. This wire harness is an essential part of a car audio installation kit (other parts sold individually). It is easy to plug in and is suitable for use in professional installations or when doing work on your own vehicle. **Need help finding the right installation kit for your vehicle? Click Here