Hi, I have a 2021 Jayco Embark 37k. This coach is almost identical to the Entegra Reatta. The unit isn't Solar ready. I want to add a few solar panels to the roof. Has anyone found the best way to route the wiring from the roof to the basement? I see a few "spare" roof vents that are not used and full of spray foam. I'm assuming they are for something like this, but...