I had just bought a engine wire harness form Evans wiring for a 340 and on the alt. there is a green wire which I know goes to the regulator, the black which goes to the battery, and a double wire (dark blue and lt.blue). I know the dark blue also goes to the regulator but the lighter blue comes out of the harness about where the carb is. It is circled in yellow. The is also a brown wire that is also hanging loose, also circled in yellow. Where do these go? See attachment