Craig,
Now you went and did it. Your photos did me in. I had to go dig out an old Unity a neighbor gave me about 25 years ago. Still brand new in the box. Even turned out to be the right one for AD's,#225 B, about 12" long overall. Just have to get an install kit,(has one in the box but not the right one).
Did you put a fuse in the power line to the light?
