i know the front speaker are 6x9 and the rear are 5 1/4 i own a 99 dodge ram sport i want to replace my stock speakers i dont know if i should go to best buy and buy pioneer or apline ive never replaced the speakers in a truck so i dont know how they would sound. ive always gone with sound stream in my cars. so i was wondering if any of you guys have any inout on some of the speakers you guys have and how they sound@! thanks!