I just picked up my new '18 FX yesterday and trying to finish rigging it. Does anyone know exactly what all the factory NMEA cables go to? I know that the system isn't terminated on each end so I really dont understand how it even works. There is 3 "t" with a line off each, a cable off the side of a "t" feeding the console graph and a grey cable with metal end feed. Any help would be great.