Okay..I am so confused on how the whole "system" thing in your car works. I drive a Ford Escape and inside some of my speakers are blown from the person before me and I really want to get some new ones put in there that will have a better bass and will be louder, but since I have no idea about that kind of stuff I don't know what all I have to buy and what kind or anything like that.I don't want anything too loud and ridiculous,but I would like something that you can hear from outside of the car and just sounds really good. Any help ?!