I technically hooked the last 2 bays up, so I have all 4 bays working off the Coleman equipment. The setup will not win any beauty contests. I did have a wire problem that was giving me a constant coin pulse to the timer. I had to swap some wires a long time ago because of a wire short, which cause me to have to retrace all the wires today. FUN. All this crap needs to be redone: we will see when that happens because it works now.