I am putting a fuel cell in my 2004 frontier and im goin to try and use the factory fuel pump assembly. There is a wire going from the pump assembly to the inside bottom of the stock tank, is this a ground? Surely the wire isnt hot since it is inside the tank? Also there are filters (im assuming)inside the stock tank that trace back to the charcoal canister. Can those be elimenated or do they have to be worked some how into the fuel cell? Any help would be much appreciated.