bka0721 wrote:
As for the cables the OP was working with, some of his issues with routing the wires could have been alleviated with using wire/cable from a welding supply center. Having the flexible wire/cable will aid in longevity in a vibration filled environment, of an RV. The OP will need to recheck the cable and connectors more often, than someone that used a more flexible cable for their install.
I don't see where and how his panel cables go on the roof and through the roof, or how they are connected on the roof, but it looks not unlike #10 or #12 that came with panels. It's a pretty thin cable, more "springy" than flexible.