Thanks for that vote of confidence, Dan! I don't think it's so much a library of information with me, but 10 pounds of trivia in a 5 pound bag. Others might think it's something besides trivia!
If it has an aluminum cup housing and a mounting foot on the bottom, it probably came from a 64-66 Olds with a console.
I put one in my '71 Cutlass just because I like the looks of it.
C.J.