Pretty standard 12 pin , why they persist in using the European set up in vans of White is NEG and Black is POS beggers belief as they will connect up equipment that has our 12v code of RED is POS and Black is NEG ............... Anderson Plug is basic 2 pins marked BUT check the alternator type and aux hook ups for it, not all will like a direct battery connection............. do it wrong you won't have power and your battery can be short lived, smart alternators vary so one variation doesn't apply across the board.................. research.
Be handy if they supplied a wiring diagram for the particular van build showing junctions, fuses, colour codes, not a Jayco thing either they all fail in that respect...... when doing any work on a van use a meter and don't assume the wire is what you think, trace it....