Can't for the life of me figure out how to turn on top off road rack lights?

[Negativecreep0]

I have the rack lights on top of my hummer. There are 4 of them, my question is are they supposed to be all facing at different angles? Looks weird? (could be for aero dynamics?)

Also how do I turn them on? I dont want to call the dealer and look like an idiot but? I have pressed every button!! each light is daisy chained except there is one last plug that isnt plugged into anything? Did the dealer not hook this up?