I've seen previous post's about a switch to disconnect the compressor at trolling speeds. I have a KAD43P with C4's and the compressor wants to turn on just about trolling speed. My questions are 1) what are the pros and cons of installing such a switch and 2) how do you do it? I see there are 2 wires leading to the unit. Do I install a switch that breaks both or one of these or ???