Just thought I would show a few pics of my dash modification to fit a double din nav system in my 2005. I know representative images were lacking when I searched, so I will add to the pot.
The install is a JVC kw-nx7000bt. I chose this due to the detachable faceplate. I know the unit is still thief prone in a TJ, but this might help deter would be takers.
It is amazing what a dremel, bondo, sandpaper, primer, and paint can do.
Sorry for the crappy iPhone pics.