Hey all, On my 1981 Pontiac Safari, it looks like it was set up to tow. I have the auto leveling air shocks in the rear, as well as what looks like a 4-pin trailer wiring connector under the rear bumper. My issue is that while it looks like a 4-pin connector, it is much larger than a standard 4-pin. I've tried looking to see if there is a connector that goes from my oversize to the standard, but have come up with nothing. Here's a picture with a standard trailer connector, the larger one that is on the car, and my finder for scale. Before I start cutting wires back there, can anyone shed any light on whether they used to use larger connectors in 1981? Thanks!