I own an 03 Sunfire and got stock Monsoon amp for it. I'm wondering if there's a way to hook it up. Would I need to buy some harnesses for it or is it just complete bolt-on? oh, one more question: how do I take off my door panels? I unscrewed it but it still holds in place tightly. Hopefully you can toss me up some awesome ideas )) ThnX in advancE