42rh A500 OD/LU connector
That is not what mine looks like, I happen to have the car on stands still, so I went out and unplugged it and took a couple pics as best I could. The gray one in the link has a rectangular protrusion on each side. Mine only has that on one side, and the other side is rounded off 90 degrees and then has a notch or a cutback area and is flat on that side. Hopefully you can see what I mean in the pics. You can also see this in the picture of the socket that Trailbeast posted. Sorry the pics aren't great but the best I could get from under the car.
That is not what mine looks like, I happen to have the car on stands still, so I went out and unplugged it and took a couple pics as best I could. The gray one in the link has a rectangular protrusion on each side. Mine only has that on one side, and the other side is rounded off 90 degrees and then has a notch or a cutback area and is flat on that side. Hopefully you can see what I mean in the pics. You can also see this in the picture of the socket that Trailbeast posted. Sorry the pics aren't great but the best I could get from under the car.