I'm assuming from my searching what my 2017 has is a 2 pin SAE connector located on the passenger side and is for what its worth 'prepped' for solar charging, however the decal/label resident next to said connector has been obliterated by weather..... Nothing I can find in the manual on this...Whats this connector connect to internally, voltage its expecting to see, and is there a charging controller someplace downstream or is that item needed as well. I'm only looking to keep the house battery topped off with a portable solar panel set while camping off grid without deploying the genny, which is not always an option.