Also, please tell me why a 175amp connector isn’t enough?
Probably because a winch at full line pull is well over that. Here's the spec for a Warn 8274:
View attachment 620975
I'd imagine momentary is okay. I connect my rear winch with 1/0 copper jumper cables directly to the lead terminals of my bed mounted aux batteries. From the aux battery to the engine bay is connected by Andersens.
Who has one? please post photos and thoughts about this kind of set up, Thanx.