Ok I am not any good at the search function so please forgive me. I just got a new 04 mazda3s and was wondering what size speakers are in there?? I am not planning on changing any audio stuff, well at least right now. I am very happy with it, and think it is plenty loud, but I was wondering what kind of speakers are in there....and is there possibly a factory sub?? it seems to bass kinda loud for a stock stereo.