We just had a 430N RHB installed in our 2012 KK. One connection is for the AM/FM antenna and the other is for the SAT/NAV antenna. Both cables are connected to the rooftop antenna if your previous radio included satellite radio service. Otherwise, the rooftop antenna and cables need to be replaced with the optional AM/FM/SAT/NAV combo antenna.
In our case, the dealership said the new 430N-RHB radio was plug-n-play because our previous radio (130 RES/RSC) included the satellite service, which includes GPS capability for OEM radios. We also looked into the 730N-RHR radio, which we have in our WK2. But, we learned that radio is not plug-n-play with the KK's because it has a different hands-free module built-in, and the standard hands-free module needs to be by-passed. Plus the hands-free module in the KK is mounted in the rear quarter panel, rather than under the dash as most Chrysler vehicles. So, it would be a major project - if a cable kit was available.