I only made it to one wrecking yard this weekend and I didn't find a single roof top Antenna! Not One!
I did go to Baxter's (an auto parts store) and they have a universal roof mount that uses two short bars to that toggle into place. I can see how it would work for a car (steel) body but not for my roof.
Joanne... That is a sweet bracket you built! I'm impressed, but I'm thinking of something ready made
Uncle Denny... That side antenna gives your tear character! I may go the same route.
I pictured it to look like the newer Volks Wagon Beetle type antenna.
I still have other yards to visit... time is the issue
-phil