AAR cuda rear antenna mounting question

on an aar cuda ,maybe the same as a t/a challenger, the mounting of the rear antenna goes like this?..
body and cable,the half moon bracket,thru the 1/4 panel/on top of that the gasket,bezel and nut...right? or is there another brace or reinforcement at the half moon bracket?..any pictures?
thanks

Maybe this will help?

that's what i thought snoopy, just cruisin on e-bay and a nos bracket came up and claimed to be aar...didn't find it in the book and had no part number..

I have one of those brackets and no way will it work.No clue what they are really for.Never seen one on a T/A or AAR

I gave up with that part. It still allow flex in the quarter and my paint cracked around the hole. I ended using modified charger (if think)support.
Like this one.