We were exploring our new 2019 Bighorn 3160EL and discovered it came with a small solar panel on the roof and a solar power controller in the front compartment above the batteries. There was no information in any of the manuals provided with the 5th wheel. The only mention of solar was a single sheet talking about Solar-on-the-Side which we don't have. Does anybody have any information on these such as panel watts or controller information? Thanks.