Thanks for all the comments. The wire will be replaced first as the belly of the coach is down right now and I have free rein of the under side of the coach. The P.D. seems like the one one to go with for sure when you consider the cost of the product, the ease of installation and the upgrade you're getting. One thing to remember, in my case, is the only time I will plug a genny in and use it to charge up the batteries is if something has gone desperately wrong with our camping plans and the solar won't keep the batteries charged due to cloud cover.