Well a good price range would be about $100. I have some JVC speakers in back of the car now. They sound OK. If I could get some better back and front door speakers both sets out the door at around $100 that would be perfect. But I know they don't have good speakers that cheap sadly. If they do, what do you recommend? 5.25 fronts and 6x9 rears. A sub would be nice also. Not too big. Let's say $150 total. Any suggestions? Thanks!