My Buddy Wired My System In My Expedition, I Have 2 Amps Punch 400 4 Ch Hooked Up To My Door Speakers Pioneer And A Punch 500 2ch Hooked Up To My 2 P2's 12's In A Box. He Used 8 Gauge Wirefor Everything. Someone Told Me It Would Hit Alot Harder If He Ran 4 Gauge Wire, It's Loud And Clear But Seems To Be Missing A Lttle Bass, Should I Get A Bigger Amp? Any Suggestions Would Be Greatly Appreciated.