Hello, i hope someone can give me an answer on this, I've tried Lowrance and furuno. I have a Lowrance LMS339 GPs chart plotter Fish finder and a FURUNO FCV-600 Color Fish Finder Both operate on 50/200 KHZ. I would like to use the Furuno for my fish finder without running another transducer cable .i already have the lowrance transducer run and hooked up.Is there a cable or some way for the Lowarance to communicate with the Furuno? I only need the transducer to work on the Furuno? Will this work on the NMEA port? Help!!!!!!