Mine is mounted on an "L" bracket attached to and extends 4' above the "3rd brake light" stalk-
It's a 4' Firestix tunable glass antenna-
I don't have any CLOSE pics, but I've stated previously how good the reception/xmitting is and some posters won't believe that--Doesn't matter to me, but this spot is an excellent mounting point for the CB antenna, as it allows its position to be over three ft above the JKU hardtop !!
My CB is mounted on the overhead and I use an 18' RG18/U premade cable, routed thru the rollcage padding, to the front of the JKU !!
The "L" bracket has a seperate ground to the tailgate metal-