A-R-A air conditioning need info

[truckin 79]

So I am working on this aftermarket Air conditioning system I got from the junkyard several years ago. I thought I took enough pictures of how it was set up in the truck I took it out of but apparently not. I hoping someone who has this set up can help me out. Here is shot of the control panel just in case someone did not realize they had this set-up. This is real similar to the Nostalgic AC truck set-up, this is for trucks that had no AC because evaporator is mounted inside the truck. Anyway I am trying to figure out how to hook up this little box that cycles the ac compressor. I have some wires unaccounted for there are two on the cycle box, one is dark grey and I think it hooks up to the back of the selector switch. The other light grey wire has a knot tied into it so I dont think it connects to anything. I have one more wire on selector switch that had some tape on it. So I still need to find a way to hook up to compressor from the cycling box not to mention the cut off switch on accumulator/dryer. Anyone have this kind of set up that could take pictures. I would assume this was a pretty common dealer installed AC unit since my 79 had dimples in firewall to show where to put holes for ac lines, not to mention little circles on the inside in the insulation to pop those out.