Looking for guidance. Trying to install a 2015 RHR radio (2 DIN with NAV) into a 2104 JKU that did not have a NAV equipped radio installed. Been told, yes this will work and no it will not because my 2014 JKU PCM was not programmed for the NAV feature within the radio from th factory. Also trying to to activate rear camera video interface with the new RHR radio to be installed. Does anyone have wisdom to share? Is there an after-market device that I can insert onto the OBD port and make these changes? Any help is appreciated. Regards, dgard1