sorry if my question didnt really have a whole lot of information. well like i said i know very little about what to get. i have had a system before but my cousin did most of it and went a cheaper route. ill be mounting the woofer in the stock location in the door and the tweeter wherever i can find to put it. As for what type of tweeter i really do not have a preference. Budget wise i would liek to stay under 500 dollars for the speakers and amp together if that is possible. I have been looking at the infinity kappa series but with me not knowing much about this aspect im not real sure just how good they are or if they are even worth it. once again sorry for the lack of info and any help would be great . thanks o and as far as size i know a 6 1/2 in woofer will fit according to crutchfield