[Kidkraz]

Bill, I am the original owner.
For the life of me, I can't remember what the black wire goes to. I'm going out next weekend and plan to do some work on the rig while out and will see where I ran all my wires to. I do know that I had to use white colored wire for when I ran the ground for my tongue jack. The hardware store was going out of business and it was on sale.
I understand making sure that wires be connected properly. I marked those wires, mostly for my own knowledge when I had to disconnect them for some reason a couple of years back. Thank you for asking about them. The colors of my system worked for me, but then I normally do the maintenance. Now having thought about it while writing back to you, I'll mark or tag where the wires go to.