i have a used greddy egt so i don't have any of the wiring diagrams for it. there are 2 connectors on the back of the gauge: one is the wire for the probe - that's ok, then the other connector, which is power/light, has 4 wires coming from it: white, black, red, and i think orange(not totally sure). can anyone tell me what these are connected to. i assume white and black are power and ground respectively, but what are the red and orange wires? are they the power and ground for the egt itself, since it needs power to operate unlike a mechanical gauge?

you have the trust one? i think my friend just got that one, ill see if i can grab the manual.

not sure what the trust one is. it's just the basic 52mm greddy electronic egt. if you could take a look at his manual, i'd really appreciate it :)