Filter Current Sense box with the lid removed.

What I see on the upper side, is the power coming from the paddle recepticle going through some coils (the filter). On the lower side of the box, I see the white wires going through a current shunt, and out to the battery box. The red wires go to a full bridge rectifier on the box lid, then to the fuse, then out to the battery box. The lower gage signal wires go to the charge controller box carrying charge voltage and (mV) from the current shunt.

The electronics does not seem too complex, with the exception of what has been potted.