1974 kick start Superglide, sans turn signals, instrument lamps and accompanying wiring: Under the headlight mount/cover, that bolts to the top triple tree, is a five junction terminal strip. At an end terminal point is 4 wires, 3 orange (two 18 gauge and one 16 gauge) and 1 black. The larger orange wire has a nearly 2 amp current draw with the ignition key OFF, but only half an amp pull with it on (probable bad switch?). Would someone with access to a wiring diagram confirm where that orange wire goes (unlike the other two orange wires that enter the left and right handcase harnesses respectively, this one enters the main engine/chassis harness). Thanx in advance.