I have a 1987 O'day 192. I noticed a small wet area in the carpet inside the cabin. It appears that water is coming in near/ around/ through the plug on the top of the cabin where the wire for the masthead light would plug in. I currently have no use for the light. In fact, when purchased the masthead light was missing. My question relates to trying to fix this minor leak. The plug appears to be only screwed down to the top of the cabin. There are no nuts on the inside. I am reluctant to remove the plug and not be able to seal it and reattach it. What material is the plug screwed into? Could I remove the plug and simply epoxy over the holes and call it done? It is unlikely that we would ever anchor overnight. I would just keep the plug for safekeeping in case any future owner ever wanted to reattach it. OR, reseal with butyl tape and reattach.... At this point, we do not even have a battery on board so no cabin, bow, or stern lights either... Fire away with thoughts, ideas, recommendations...