I did a short write up with some pictures on installing PIAA lights on the Manik light bar and wiring via a fitting in the roof. CruiserLarry has already done this on his Gobi rack so I want to make it clear I borrowered his idea. Here is the link if your interested.
Roof Light/Manik Light Bar Install Pictures - Adventure4x4
Roof Light/Manik Light Bar Install Pictures - Adventure4x4