The original guard mounted manual aerial in the farm ute has seen too many trees and the mast is gone and the foot no longer holds onto the guard.

In my attempt to reinstate tunes into the ute with a new radio, I have sought to replace the aerial. I bought an Aerpro AP60 multi fit guard mounted aerial but the foot is too small for the hole in the guard...so that won't work.

Sourcing genuine appears to be either spectacularly expensive or impossible...

Surely someone has been down this trail before...if so what did you do?