Wires look to be stock. That is an Interstate seat. It will be interesting to see what you come up with to mount it.
I agree, and have no knowledge on how that will mount on a std model. I suspect other then the lock at the front, there wont be. Of course, the strap will hold it in place.
As I mentioned, non of my 3 IS models even had the strap holding the seat down, but being an IS, that open square had a bracket to hold it in place laterally.