I had Polks in my TJ and they sounded great. Most on the TJ forum seem to prefer them. But I see alot of recommendations for the Kickers on the JK forums.
I'm a casual listener. Not looking for high fidelity. But the stock speakers in my 2012 JKU suck pretty bad. Would like to just be able to hear a clear phone call and clear music.
$109
Polk Audio DB651 6.5-Inch Coaxial Speakers - 2 Pairs (4 Speakers) https://www.amazon.com/dp/B00MI53PF2/?tag=jkforum-20
$156
Chrysler Jeep Dodge 6.5inch Kicker Speaker Upgrade Set of 4 Mopar OEM https://www.amazon.com/dp/B01F92M6NC/?tag=jkforum-20