I'm going to upgrade from stock speakers because the stock ones in my 2016 wrangler sport are trash. I am thinking about replacing the 2 sound bar 6.5 inch speakers and the 2 dash 6.5 inch speakers with the kicker upgrade speakers. It'll cost $140 for the speakers. And then I am also going to poly fill the sound boxes. Any thoughts/reviews of the kicker speakers or recommendations before I buy anything? Not looking to spend a fortune.