i am new here, i have been looking around and checkin some stuff out about car audio, and i haven;t been able to find exactly what i am looking for......

i have a 2000 acura tl, and it just isn't loud enough, the bass isn't loud enough and it seems to rattle the back deck but dont know where its comming from so i am looknig to eliminate that speaker, but what would be my best option for front/rear door speakers? i have a sub config in mind but thats later on....

does each bose speaker have its own amp attached to it? is it recomended to rewire everything if the speaker has its own amp?

well thats all for now that i can think of, any help would be greatly appreciated!