I forgot, I do have a question that someone here may be able to answer. If I have a two wire device such as a proportional brake valve or an on/off valve. Would I hook up the negative wire from my receiver and the signal wire from my receiver only? Consider that I'm on a 5 volt battery system and the device is 0 -5 volts. It seems to me that I would hook up the proportional signal from my receiver, assuming it is a 0 to five volts originating from my transmitter. You guys see what I'm saying? If not, I'll try to clarify.