Starting out! 2008 Mitsubishi Lancer GTS

[defakadef7]

OK! So this is my first car and i'm looking to get some a new sound system. I already have a "650W Premium 9 Speaker System" but it doesn't hit the way i want it to hit. The amp itself is a headache because it auto levels the music . So I'm looking to replace the amp and the subwoofer with 2 12's or 2 15's and a new Amp. But I have no clue where to start. Right now i have 2 Rockford Fosgate P2D2-12's with a Rockford Fosgate R500X1D in my cart on amazon... box and all. I want something that knocks, I want to keep my current speakers in the doors and the navigation but i have no clue what to do. I looked all over the internet but this driving me nuts.