when I ran a 100gal aux tank in my dmax (plummed into filler neck) it would register full when the tank was full, most peoples with this setup do not work this way, so their is nothing you can do, also get rid of the edge or you will regret it unless it is a CTS moniter. also I have bags and I put a pump in a box and mounted on frame rail with switch in cab.. Btw with a full aux tank and 5er you will be over axle rating because your pin weights is at 1650 without propane, hitch, camping stuff. that is the reason i had to remove my tank
