I just stuck one of those tap lights on the inside rear roof of my Jeep. Works great. Although, mine is a hard top and it might take some fabbing to get one attached on a soft top.
'04 TJ Unlimited (The Original Unlimited!!)
2.25"BB, 32" M/T's & Super Swampers for off-road
Where we're goin', we don't need no stinkin' roads!!