If you want something like this.
You're gonna have to run a wire under the truck from the battery to the back or pop your hood and hook up a jumper set up like this.
Either way this is the best place to get the Anderson connectors.
https://powerwerx.com/anderson-sb-connectors-sb50-50amp
Either way I would incorporate a 50AMP trolling motor circuit breaker somewhere in the Hot (+) lead from the battery. Use one color connector's for the battery hook up and another color connector's to the hand controller and the winch motor.
Edit: I have a 5K lb 1 HP TS winch mounted to my boat trailer tongue to launch and retrieve my boat down my private ramp at our lakeplace without using a vehicle. It is powered by the group 31 AGM battery under the front casting deck for the trolling motor. I can pull the whole 1,700 lb rig up the very steep ramp 45' to under the boat shed in one continuous pull without the winch motor even getting warm to the touch. I'm only using 6 gauge wire. If you plan on pulling more than 2K lbs I would move up to the SB350 connectors and 4 gauge wire.