So I just finished installing my system in my new car and it isn't even a fraction of how loud it was in my old, which makes no sense to me because I upgraded from 8ga to 0ga power wire and from 14ga to 12ga speaker wire. The only things I've done differently in this car are grounded my amp to the battery instead of chassis (can't find anywhere to ground on chassis without having to buff off paint) and wired speaker to amp differently. I'm thinking this is where I'm losing all my sound.
I'm kind of new to all of this so I don't really know how to explain how I've got it wired compared to before, so I made some horrible ms paint representations lol.
Shaded circles are where I had/have the wires hooked up.
The reason I did it this way is because somehow the threading in both outer ports is stripped and the nut thingy wont tighten down onto the wire. If it's likely this is my problem does anyone have any idea how I can get them to tighten down?
Oh, the amp's a Hifonics Brutus 1200w BXI 1210D Super D-Class, thought I doubt that matters.