you would just run them to your Solar Controller module, which is required with solar panels, and then a short run directly to your batteries. Some of us don't even do this as a permanent hookup, but use our panels only when needed, setting them on the ground near the coach, and using alligator clips to the battery bank.
solar 'ready' coaches are really not that big of a deal, the factory just provided simple wires from the roof down to the battery area... no biggy, and usually they don't size them large enough anyway...plus, everyone doesn't necessarily want to mount solar on their roof.
'14 Thor Palazzo 33.3 compact diesel 100k+miles since '14... US, Alaska, Canada...
AND a '14 Gulfstream Amerlite
AND a '07 ForestRIver Rockwood