I left the one on my filler tube alone. Then took a line from the tank vent and the fuel pump vent into the plastic Y in your picture. Then the single line out of the Y to the aluminum vent in your picture. Mounted it up high on the rear sub frame.
Yes I get that, and thats my plan if I have to run all three.. but my question is, Do I need too? In theory shouldn't the filler neck vent tube be enough?