Installing Winch on 1995 Honda 300 Fourtrax

Ive searched and searched but maybe using the wrong terms. I have moved my old winch over to my 1995 Honda 300 Fourtrax 4×4 (my work quad) but have long lost my installation paperwork. Motoalliance website had what I needed for the most part to transfer it over and wire it up but now i need to find the "switchable" or "keyed hot" wire. Ive got the dash cover off on my Honda 300 4×4 and see 4 wires coming off the keyed ignition but for the life of me can figure out which of these wires to tap for a keyed hot wire. I guess I could go straight to the battery but I hear this causes a low drain and this is a work quad that doesn’t get used very often but when it is needed I don’t want to fool around with charging, jump starting or kick starting. My 5yr old son loves to come to shop too and he sits on my quad and mowers and has a good ol’ time so I really don’t want the winch working unless the key is turned or its running as a safety measure. Anyone out there shoot me the proper wire in this bunch to tap? If not on of these 4 which is the correct one to find and use? I see an "accessory plug" on the handle bar of my 300 but ive never really know what its for as that plug is unique and doesn’t fit anything iver ever seen or own.