[Greg]

If you really have no idea what pins the pressure switch was connected to, and you dont have access to the source code from last year, all you have to do is remove the spike, and wire the compressor directly to the fuse through the pressure switch. While illegal at a competition, this will most definitely work. In fact, we showed up to a regional like this last year and had to change it to pass inspection (we didnt know this was illegal).