Does anyone know how to remove the front door panels to replace speakers? I have searched but cannot find instructions on 07+ models. I took the plastic piece off the pw/pl controls and see those two small screws inside. Are those the only two screws and the rest just pop off? I dont wanna break anything. Also I know they are 6x8s but will 6x9s fit w/o any modification? I already have those and would like to use em if possible.