Truck chassis #79- I am getting around to wiring the power steering up and the wires don’t match the instructions. Coming out of the power steering controller there are two bundles of wires that go to the steering unit, and one bundle that appears to get wired in to the electrical system. There are three wires, red (presumably pos power), black (presumably neg power) and a small blue wire. I assume the small blue is for ignition power? My instructions have a lot more wires and none of them are blue. Thoughts?