I bought a new Challenger a few months ago. At the time it had an 8.4" UConnect system with Apple Carplay but no Nav. I had them add a new Nav unit as a condition of purchase. Once the new radio was installed (a week after I took it home the first time) the SiriusXM would not work. It took forever to get it to receive channels. Now, the Traffic and Weather features are still not working. I have spoken to them multiple times, they have charged me for the service, the dealer reflashed the system, I called them a few more time and everything else you can think of but still not traffic and weather. Has anyone else had a similar issue?