So I installed my system and began to see dimming lights a few weeks later so I'm doing a Big 3 with a Xs power D3400 I'm running 1 jl slash 500/1 on 2 kicker comp 12's .This a very temporary setup because I am waiting on the box for my 12" comp Q's (the round ones) I have another jl 500 to put on each sub individually and a alpine R-A60F 4 ch. for my interiors. I didnt think this setup would draw to much power to mess with my electrical but it definitely is, not to mention my cars also fully loaded with alot of electrical components. Does anyone think this battery and big 3 will supplement what I need for the time being? I know for a fact that this setup will change in a month or so and, that I may ultimately need to upgrade my alternator. Can anyone point me in the direction of one for a reasonable price or maybe an upgrade rebuild kit that will allow me to rebuild my current alternator? Also will this battery be able to support the future set up i mentioned? I'm not really a fan of the battery in the trunk thats why I'm trying to go will the alternator rebuild kit. l drive a 1999 oldsmobile eighty-eight "anniversary edition"