Take the lid off and look inside for a strip of lugs that are labled A,B,C,D... If it's in there, it is in many other machines these are your remote contol- controls. You could hard wire them and add a 14 pin extendtion cord. Also try the Hobart Weld Talk Forum or the Miller Forum. They have their Techs monitoring the forums. They will answer your questions without any guessing. Ted