Links below - this mod seems very straight forward, but it might be too bright if you are looking for not real bright lights.
I like the look, real clean. But does seem almost too bright. Maybe if I have 40 bucks laying around one day I will buy the kit.
Heres a link to a thread on JF. http://www.jeepforum.com/forum/f67/r...-leds-1273578/
The ebay kit is here - http://www.ebay.com/itm/HID-WHITE-LE...item3a800054ff
EDIT - Doh just saw you have an XK, I'm sure the install/kits are very simmilar