I have checked those sites without success in this matter. I have been wrestling with this problem quite some time and believe the solution lies in the technical service bulletins that address the NAV board software updates, I cannot get Chrysler/Jeep or anyone else to provide the actual files to create the referenced USB's. TSB 08-003-17 addresses going from NAV v2.90 to v5.11 and TSB 08-002-17 REV. B addresses update NAV from v5.11 to v5.19 and then to v7.09 (two step process). From there I believe you can use the Garmin Express path. The earlier TSB addresses 'early built 2012 RHB's' having a different navigation computer board that would only go to v2.90. My Jeep is a 2014 Wrangler Sport and the 430N RHB radio ID sticker says the date of manufacture was NOV 12/2013. I've tried opening the uConnect iso files from 23-04-41 through 51-01-01 and extracting the Garmin files, even tried loading them as Emergency Restores, but they apparently do not address the NAV board firmware. Any insights across the forums would be greatly appreciated.