Hi, I have a smart shunt in my camping solar system. I have bought an A/C charger from Victron as well and want to hard wire it into my system. My question is on the ground do I go direct to the battery negative or do I go downstream of the shunt like all my other ground connections. The confusion for me is all electric users are downstream but this is a supplier so does it matter if it is upstream or downstream of the smart shunt?