Ya I ordered the orion XTR 2500.1 for the HD15. Should be a good match up. Now I just gotta find me a buyer for this XFL and this VFL 4800.1 and I'll be set! I'll let ya'll know when I have all the new goodies hooked up. I'm going to run dual inputs, I have a shurikin in the spare tire well I may move it out if I can make room, and it's on its side at this time as well (I've been told that is safe?) So I need to find some good battery posts, I wish it was screw on posts. A lot more options. And I don't want a terminal for 'screw in' inputs, I want one for lugs. When I run dual inputs, I will need to run an ANL on each line right? I run a 250 right now up front and then before the amp, should I run 250 on each line into the dual? Also, should each amp have it's own ground ran from the frame or is it best to just run a ground from the battery, esp for the dual inputs obviously? I have a skar 80.4 I'm just running it's own ground as well but after I get the right terminals I should just run it from the battery right?