Perfect - Thanks very much Mike!!! I should have gone just a little further in that excellent thread. That's what I needed to see - the base plate in reply #38. The base plate in the kit I bought is nothing like that. It is round but is larger in diameter and has a strange offset angle to the center hole for the antenna lead. I notice that the same rear antenna kit ( for AM radios only) with the WRONG base plate is very common at several vendors. However, strangely enough, you can buy the correct base plate (as per the picture in reply 38) separate at some of the same vendors. Go figure? Now I can buy the "correct" base plate which will actually fit and be functional. Thanks again for your help. And thanks to CRG for making this forum available.
Allen