Hi there. I'm looking to but a incredibly loud and hard hitting sound system in my '09 F-150 extended cab at the end of summer. I found a down-fire sub box that will fit under my back seat and it can be custom ordered to fit 8's, 10's, or 12's. I'm fairly set on shallow 12's but I want some high powered and hard hitters. I also have no idea what for door speakers either. I'm not sure about anything to do with my system either except that I will not get rid of my back seat and I'm getting a touch screen deck. So any suggestions will be awesome. But it has to shake the whole school parking lot! Thanks a bunch!