I have an 87 camaro that was converted to power door locks and power windows. The power windows work just fine. The power locks on the other hand do not. Upon troubleshooting, I found a four prong plug with a orange, black, tan, and white wire; that is plugged into anything. The orange, white, and tan have been cut, and the black I traced back up the power window harness and that comes to a splice connector and that too was cut. This plug apparently serves a dual purpose because I cant find it on my troubleshooting wire schematics. Any input is greatly appreciated.

The plug has four wires on it. The plug isn't plugged into anything.

Maybe someone has a website or company I can ask these questions to?