Help! I installed a N-500 filter as suggested by Curt but I'm not getting any power from it. As per the instructions, I connected green to the fused aux connector from the battery and the red to my MIT-100. The black went to ground under the seat (the seat latch bolt). I checked for power to the filter and continuity before and after, but...nothing . Am I misled by the function or could I have received a bad unit from Navone?