I mounted the KC's back in late March when I FIRST got my FJC.
Search for my username and you will find lots of information about the install.
Basically I mounted the lights on one of the rack bars itself, and ran all the wiring through the roofrack bars, into the cab. ect, (quite a few drilled holes, and lots and lots of work with extended coat hangers ect)
Pain in the butt, but well worth it IMO. They are KC Daylighters, and are VERY bright.

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***SOLD AND MISSED*** 2007 FJC Diamond Black, Fully loaded 6 speed MT
4 KC Daylighters roof mounted, 33" BFG MT's, Daystar lifted, All-Pro front, rear, side armor
www.LocalBuddy.net <----- a work in progress.