Please note that depending on the model you will need to purchase the uConnect module, the wiring harness and the microphone (There are 2 types of mics, one that can be installed in the pillar or other that comes integrated with the rearview mirror, so you need to purchase the whole mirror and another harness).
If you want to keep original, other option is to purchase a MyGig radio that has the uConnect integrated, like the RHR. That unit only needs the microphone.
Both options, adding the uConnect module or replace with a RHR unit, will be very expensive, but will keep your Jeep original.
An aftermarket unit will have more options and could be less expensive, but you need to add some device to retain the steering wheel controls (If you have them)
Just get one of these. It comes with everything needed in the box, wiring harness, CAN bus box (so you can keep/use the steering wheel buttons), etc. All you'll have to do is remove the old radio and install this one. Took me less than an hour and it is Awesome!