This installation was completed in May of 2021. The Victron system components all communicate over an internal Bluetooth network.  The customer started small, with the intention of being able to upgrade battery and solar capacity at a later time if needed.  The batteries were relocated from the tongue of the travel trailer to the pass through compartment with all the other components to help keep them more temperature controlled while in use.  The installation was fairly simple, with no real issues.  I installed plywood behind the wall panel in the passthrough compartment to give some structure to mount all the components solidly.  The solar wires were run from the roof, through a bedroom closet and into the pass through compartment.  They were tucked away in a corner of the closet and can’t be seen without specifically looking for them.