Hey I have a 200 cavalier with a sony xplod 800w sub and 600w amp.. I have 140 watt kenwoods in the back speakers and stalk fronts.. I recently found out my sub and amp won't work if I have no aftermarket head unit. Please let me know if you know where I can get a good or half decent head unit for a good or great price.. I don't have a job and I'm only 15 so you.. lol thanks guys