After purchasing my 2013 JKU, I started scouting out a solution for the installation of a 2m radio. I was going to go with the Yaesu FT-2900. I'm not doing mobile DXing, just looking to hit some repeaters while local and on the road. Every option for mounting a radio did not appeal to me. IMO, the cabin is way too tight to start jamming things under the dash or hanging them over my head.
I decided to make my solution more of a portable one. I'm using my HT (FT-60R) with an upgraded rubber duck antenna (MFJ 1717S). I hang the antenna from the rear passenger window with the MFJ-310S. I can run the HT from battery, or plug it into the 12v power port. I have a cup holder mount and speaker mic for mobile use. I also have a MOLLE pouch to hang it off the side of my Trek Armor seat covers if I like. Additionally, I have an Mirage BD-35 Amp which will get me 45w output on 2m, 35w on 70cm. Only 7 amp draw plugs into 12v power port. Plenty to hit my local repeaters.
I realize I could have spent less on a mobile radio, but this set-up is super compact (takes up almost no space), flexible, extremely portable and connects in seconds. When I'm not on the road, I just unscrew the antenna from the window clip, pop it on the HT and I'm portable.
Everybody's needs are different, but for a mobile solution in the tight quarters of a Wrangler with no permanent install, this works well for me.
Just my .02