Let's start by acknowledging that this package will not win you any stereo competitions, but it sure will make your Jeep more fun! I installed this into a 17jku with the 430n head unit (non Alpine stereo system). It's an incredible improvement even with the stock head unit! The amps fit nicely under the dash and the sub under the front passenger seat. It is a significant, significant improvement over the plastic crap that comes stock. I'd highly recommend if you're looking for something better but don't want to piece together your own system. 4wp got it installed in just a few hours!