Just purchased a full cab and starting to educate myself about it mechanicly. On the steering control levers there is wires in the tubes, looks like maybe there should be switches? There is one wire in one über and Two in the other tube. Can anyone tell me what they are for? Also the speedometer doesn't work, I see its electronic. How and where does it get its pulse from? None of the temp sensors gauges work but they should be easy to fix. Maybe a ground issue with the dash. Fuel gauge doesn't travel from full to empty by unhooking and grounding so likely an issue there.