Here are a couple of pics that show the wiring colors at the connectors.
I plan on adding some LED lights too. My plan is to isolate them from the body control module with fused relays so the only load added to the BCM is the relay coils. Since the computer switches everything electronically, we have no way to know how close to design load tolerance the switching components are. LEDs might not add enough load to hurt anything but it would be a shame to pop something.