I'm still not sure, I just ordered the one off of ebay. I could've done the wiring, but I couldn't find the base that contacts the bulb to send the electric signal to it.
That there should be it. The "socket" in the indicator housing is male threaded. The bulb fits in like a .22 cartridge, and this thing screws on and makes the ground for the bulb as well as the "hot" contact for the wire
