There were three wires going to the strobe housing, red-black-white. There are only two wires on the strobe itself. Due to the position of the terminals when I put the housing back in, (the white and black wire were on top of each other) I am assuming (yeah, I know) that the black and white wires are (-) and the red wire is (+). I have since found out that the strobe get's B+ through FU-3...

now if I can just figure out how to get into the panel where the fuses are I can check that.