I have a HDS Carbon unit and a 3D Module along with a skimmer transducer and the 3D ducer. I want to add a Spotlight scan transducer to my TM. Now, here is the question. HOW do I add this ducer? I haven't actually received it yet but "I think" it has the blue connector and I don't know if that is compatible with NMEA 2000 connectors. Does anyone know what connector it actually has?