Griz, I just went through this the other day. Two of the brown/blue wires go to the light switch and one brown/blue to the ignition key switch (not the starter button). Note that two of these wires are of a lighter gauge than the third wire. Whoever started the resto on my BJ7 had connected one of these wires wrong; they had connected the heavier wire to the ignition switch and the two lighter wires to the same terminal on the light switch. The lights would not work, and it took a while to figure this out, since the wire colors matched the diagram in the manual. The heavier wire should connect to the same terminal on the light switch as one of the lighter wires, and the other lighter gauge wire should connect to the ignition switch. You probably will find that one of the lighter gauge wires is slightly longer; that one connects to the ignition switch.