I know very little of speakers/car audio what so ever. I want to just simply replace my default speakers, and slowly work towards getting the whole audio system replaced.(2002 Grand Prix) Where do I need to start, and is there anything I need to be weary of as I'm searching for new parts? ANY help would be greatly appreciated as I get started on my search, as I will be doing most of this for the first time with the help of my dad, but I'd like to show I can figure most of it out&do as much as I can on my own. Thanks!