Single modified FPDM. My plan is to keep the factory harness in place for the level sending unit and the other connector on the fuel tank. The hat came with the 7' pig tail, I was going to trace it up into the trunk along the factory harness and cut factory wires from the FPDM to the pumps and solder in both blacks and both reds from the fore harness to where I just cut. So the FPDM feeds directly into the fore harness and the level sender still utilizes the factory harness. Essential leaving the factory wiring for the pumps in place but, inert. Sound about right?