Hey just wondering what electrical upgrades I need for my current set up ,I have a sundown scv1500d and a ppi 900.4 for mids so I'm guessing it's around 2100 watts rms total but eventually ill upgrade to a 2500 watt amp down the road but my 2 xfls seem to be doing quite well with the the 1500 watts atm..btw I have a 110 amp stock alternator and a 850 ca battery I have no idea how much ah it's rated at...