I have a 2010, Jeep Unlimited. I took the advice of users on here and used POLY FILL to stuff the speaker box(s). I did it for both front and the rear sound bar. What a HUGE Change!!! WOW!!!
I purchased BOSS CHAOS EXXTREME CH6530's. I customized the rear sound bar covers also. It looks awesome!!!
It was easy!!! If you have or want to know how I did it, just shoot me a message :-)!!