Sorry, I said the ignition for the one red wire, when I meant to say it was for the lamp. So, I've got a red wire for the lamp, a red wire for ground. The other 3 disappear inside the housing, so are the ones that will make it work. The black wire was cut short, like the red-ground one, so probably is also a ground wire. That leaves me with yellow and blue.
I have a stock ignition system. I expect one of these should go to a positive connection, the other to the coil. Do you think maybe they should go one on each side of the coil?
