I too went looking for wiring schematic for our 2013 Arctic Fox 27T.. my first quest was regarding troubleshooting the hot water heater.. but then I wondered about the sticker that said "solar ready". I got a response from NW but it was less than desirable... my solar ready is a fitting on roof that is sealed with wires going inside somewhere. All that I read talked about having the shortest wires from solar controller to batteries, so went in search of it somewhere in the front.. I found it in the very back of the trailer, two wires in the upper cabinet. Of course a well planned solar install would not put the controller there so the "solar ready" feature is of no use (except perhaps there is a hole through roof already so I don't have to cut that).