Hello. This is my first post and may or may not be the place to ask this. I just got a 2017 Titan from the dealer. 1 owner, 15k miles. I noticed a plug on the back and followed it up to the battery. Red wire, black wire. Maybe 10 or 12 gauge? What would something like this be intended for? Maybe a winch on a trailer? I'm just curious about it as for its purpose. Thank you.