I’m trying to figure out a way to get my fuel tank levels onto my NMEA network while still leaving the analog gauges in tact. The issue is that my boat has the analog 4-in-1 gauges with 4 wires going into the back of it. I was told by Maretron that it is not possible to use the TLA100 with this type of gauge. Does anyone know how these factory gauges are wired? My thought is that the individual sending unit wires must go to a buss block where they transition to the 4 wire plug on the back of the gauge. I have tried tracing backwards from the dash but they just get lost in the bundle. Or am I missing another option?