I have a 2009 Subaru Impreza Outback Sport; I upgraded to a 100 amp alternator, did the big 3 upgrade(4 gauge), added a second battery 2x OEM replacement (fused 4 gauge battery to battery), 1/0 gauge from second battery fused to 50 farad cap distributed to 2x 4 gauge one to Skar RP1500.1 at 1...