My 2004 Hunter 240 has a 3 prong electrical fitting though the deck at the foot of the mast to serve the anchor/steaming light at the top of the mast. The top/male half of the fitting was damaged. I can't find a manufacturer's name on the fitting. The only mark is "3A3P"; which probably refers to the 3 amp 3 prong plug. I can't find a match or even another 3 prong plug currently manufactured. Anyone know a source of a replacement plug?