Hey guys Im in need of some advice. I'm currently piecing together a setup which will be in a Trailblazer SS. So far I have my two BL 15s fully loaded (newer versions), JL 0/1 awg, and will be powered by a Crescendo BC3500d. I plan on buying a mechman 240 alt, xs power 3400 for under the hood and 3100 for out back. I'll probably have car tunes build my since they did a great job last time. I'm aware I should be running dual 0/1 for the batteries so I will but what else am I missing or should also do? Currently have 12 awg for the subs, should I go bigger? Also will my battery setup work fine at idle without crazy voltage drop? What about dual amp inputs? Any help and advice is greatly appreciated guys thanks for your time!