I replaced my dash and front door speakers with a Memphis Audio Component Set. Tweeters in the dash, 6x9 in the doors. I also sound matted the front doors at the same time. Replaced the stock Sub with a shallow mount Pioneer and a dedicated amp for the sub with the knob control mounted in my dash. I have been very pleased with these additions and the only other thing I might add is to replace and sound mat the rear doors. Only thing to note with replacing any stock speakers is that the stock speakers are like 2.3 ohm so when you replace them with 4 ohm speakers, it takes a little more volume to get the sound to where I want it.