Update 3/26/2006 - Since I started storing my half door windows in the rear section of the TJ, I've kind of grown fond of that space at the top of the roll bar. So.....I opted to move the radios to beneath the front seats.
Here is a pic of the passenger seat with the Kenwood TM-742 mounted beneath it. Since installing the seat risers, there is plenty of room to mount the radios and getting them in and out is a lot easier. If you haven't checked out the TJ seat risers, you need to take a few minutes and do so now.
4x4 Off-Road Homestead Firearms RC Flying