I’ve owned my 2001 1121 for 15 years, and one of the first things I did after buying it was remove the TV antenna from the roof. I patched the hole in very much the same way Brad patched his. I made a patch from a roll of aluminum flashing, and used some Eternabond double-stick tape to hold it down. Eternabond double-stick is the Eternabond adhesive with no vinyl backer. I covered one side of the patch entirely with it. After sticking the patch down, I caulked the perimeter with lap sealant. That patch has never leaked.
:):)