Ok, I must be clueless.......
I've got my 500's wired exactly as in the third diagram but they still don't work.
I used my volt meter on the leads on the light itself and didn't get anything but when I test one lead to ground I get 12v. I tested the grounds from the relay and the lights and get 12v there as well but nothing to the lights.
I'm not completing the circuit somewhere but I can't figure it out.....plus it started raining and got dark. So in the morning I'll be digging into it again........
-J