Report "Hi, i just bought a NASA (UK) "Easylog~" which uses the rmc sentence to display speed etc; I planned to connect it to my oldish but brilliant Raymarine RC435i chartplotter but am confused as to which wires to connect-- the Easylog instructions tell me to connect their black to supply neg, red to pos via 1 amp fuse, blue to nmea output (nmea pos) and brown to nmea reference , NMEA neg. If no reference marked, link brown to black. BUT--there is no blue on the RC435i; can anyone help please? Thanks, Jim , Scotland"