Today I had Car Toys install a 430N that I bought on eBay into my new 2012 JKUR. It replaced the 130 with Sat that came stock. It powers on and "works" fine, with the notable exceptions of the Satellite Radio (no reception -- says "check antenna"), and the GPS, which gets no reception. Car Toys swears they connected all the antennas correctly.
Dealer says the computer might need to be flashed but isn't sure. I'm willing to try, but would like some feedback before spending $125 on the flash (I know that's high).