I have a ProCraft 170 fish and ski boat. I glued the transducer to the raised area in front of the drain plug and it does not seem to work there. Not sure if there is a open space between that and the bottom of the boat or what causes the problem. I have moved it to the area right in front of the drain plug but have not glued it down yet. Should the thing work there? I would run it to the outside but opening where control cable and fuel line come out look too tight to get the transducer or the fuse on the fish finder cable thru the hole. Any ideas would sure help solve this problem.