Thanks to everyone for the guidance. I have the pyro probe, boost and all wires run to cab. I have not put in the water temp probe because I have not had a chance to get more coolant, does anyone have a guess on how much I need to drain out of the radiator? I may wait and do the temp probe when I change the thermostat, but if I only have to replace a few gallons to do the probe I will go ahead and do it but I suspect I will have to drain most of the coolant.
Power for the gauges is easy, I got some taps for the fuse panel but what I am having trouble with is the rheostat feed for dimming the lights. I had planned on using the bulb feed for the ashtray but I am not finding a bulb in there, which is crazy, there has to be one but it does not light up at night? This truck is an XLT, there should be a bulb there? I am trying to avoid taking the dash apart, the bezel is broken in a few places and just glued back together. What am I missing? I am going deeper into the ash tray area, maybe the retainer for the bulb is loose and dropped out of sight. I cannot think of any easier to get to dimmable wire than that one. Any ideas?