2018 Wolf pup bhs,where to run the wires for solar panels????

[ElvisMts]

Hi i just bought a 18 Wolf pup bhs travel trailer, and i am considering to install 1 solar panel to keep my batterie charged, so the question is whats the best way to run the wires???
Thank you.

[SeaDog]

Many people use the portable units that stand alone and go direct to the batteries, that way no wires to run thru the rig. Just a thought