Upgrade the audio system in your 2011-2014 Jeep Wrangler 2-door vehicle with this Kicker PowerStage PWRA211 kit that features a multichannel DSP processor/amplifier and 10" square subwoofer to enhance your current system.
This kit will drastically improve the sound on your wrangler and add thumping bass to a car that desperately needs it.
I did a lot of research on this product and similar products from JL that BB doesn't sell. Ultimately settled on this one based on other reviews and the fact that Beat Buy was offering a price at the time that was the lowest I could find and included free installation.
The installation itself took under an hour and I didn't have to purchase any additional parts because this kit includes everything down to the wire ties. The installer remarked that it was the first one he did and was very easy and he liked it.
I also like that the two amps it comes with are designed to fit inside the dash, which is nice for any vehicle but especially important on a wrangler where theft could be a real issue.
They claim the amp for the speakers is specially tuned for the car. I'm not a true audiophile so it's hard to evaluate this scientifically but I will say the sound seems to be very rich on bass and I wouldn't say it has a natural soundstage.
The sub attaches to and fits neatly behind the back seat. It mounts in the center of the "trunk" leaving space on both sides for groceries. I didn't measure exactly but it seems you will have sacrificed about 1/3 of the storage space.
Only cons I can think of are that I wish it had a subwoofer control knob and I'm concerned that if I remove the rear seat and want to use the sub then there's nothing for it to attach to. Haven't tried this yet.