Has anyone ever heard of an auto seat back option? I have a small wiring harness that came with some other 70 mustang stuff I got from a guy. He said he took it off his car when he pulled his heater and switched to a classic auto air setup. It has a relay on it with a plug attached to it with a orange wire, a red wire, and a black with white stripe. From what I can find online, this relay is showing to be a auto seat back option that will move the seat back forward when you open the door, but I have never heard of this. Any help would be appreciated. I will post pics of the harness in a bit. Thanks