I agree, doesn't make a whole lot of sense to tear it all out, unless its fried. Here's a tip if you're doing it yourself. Hopefully you have manual, cut the wiring schematic page out of manual and take it to your local office supply store or a blueprint shop have them enlarge it to a size that you can read. I had mine blown up to 24" x 36". Tape it to the wall, your're good to go.