mmckenna
I ♥ Ø
Out of curiosity, I wondered what the 'pros' did. Wranglers are used by law enforcement etc where rugged terrain has to be patrolled. I came across a picture of a US Border Patrol JK. They drilled a hole right in the plastic top. I'm guessing they used a half wave. The thought of doing something like this crossed my mind, but my top is rarely on in the summer so it wouldn't be practical.
Either a thick mount NMO with a half wave, or they did a thick mount with a conductive sheet on the inside of the top. I've done that on UTV's with plastic tops on them.
One of the antenna manufacturers, maybe Laird, sells a 6" disk with a 3/4" hole in the center for doing UHF and higher frequency antennas.