Hey there ChooChooPaul, bring those pentagraphs down some. Hancock linked you up with a nifty wire schematic that should answer your questions. That black and red wire you ask about on the light board could actually be power from the motherboard. It swaps over to blue / yellow along the way through non-board mounted connection. The other connector appears to contain all of the signals to turn on/off head light, marker lights, ditch lights and dash lights. That is coming from DCDR-S board. See markup below.