The battery feed to the winch, the one everyone wants to put the disconnect switch on. Instead of putting a disconnect switch that will likely be in a hard place to reach when you really need to reach it, put a relay in its place instead. They have heavy duty relays (that look a lot like a starter solenoid but are continous duty rated). Then use a switch in the cab to turn it on and off. Power the switch with either run or accessory power so you don't accidently run the battery down. So the only way the winch will have power is if you have the key on and the cab mounted "arming" switch turned on, then the winch will have power and will work with the remote.