Where is my XM Integration with Traffic and Weather?

In my old vehicles, when I purchased XM Radio and had built in NAV, for an extra 2.00 a month I was able to add XM traffic and XM weather which integrated nicely especially on long trips. When I tried to add these functions through this NAV system, GM does not support it. I am told it has embedded traffic for the nav system and the weather is handled by the Weather Channel App. XM informed me that Dodge reconfigured their audio/NAV systems to work with XM now, but I dont think GM has any intention to. Bummer