This is most of the rest of the harness, except for the cable feed from the battery box to the connection box. You will notice one set of cables has the rubber caps on opposing color wires. This is not a mistake, they are to remind me to reverse the connection at the winch to get the rotation to match the desired direction indicated on the controller.
Over the years I have salvaged half a dozen connection boxes, this is one of the nicer ones I have. I still need to drill a few more holes to accommodate all the connections. The large red key is a battery isolation switch. When not in use I can isolate the batteries to prevent battery drain. The green indicator light is a reminder the switch is closed.
Just a little warning about the security of the type of locks used in things like tool boxes and applications like this connection box. When I salvaged the box the key did not come with it (lol). However I keep a ring in the shop where I keep found keys and keys from various locks I have had over the years. I tried a number of keys till I found one that opened it. I didn't try it but I think this one came from my red 6 drawer toolbox.
So we'll try to get this all connected up tomorrow.