I was finally able to install some nice speakers replacing the stock ones. I installed front speakers: 500W, rear speakers: 600W. Now I got 2 10" 800W and a 2 channel 1200W amplifier. The question is... How do I do to finalize this installation Do I need a capacitor? (most likely yes) how do I do it. Can anyone help how to hook up all this stuff (front, rear & subs). Thanks in advance.