A:AnswerFind out the speaker size of your car. You can always ask the Best Buy car audio guy. I don't drive a jeep but my 2013 honda I had I buy a harness so I could install it.
A:AnswerIn order to troubleshoot that issue, you would need to make sure your wiring is done correctly. I don't know if you installed these to pre-existing car audio wires or separately in a box. That is needed info to help you figure this out. You could call Kicker and maybe they could help talk you through the troubleshooting.