It isn't that I can't get into SXM streaming. Rather, it's that I don't have unlimited data on my cellphone plan, which I share with my wife and older daughter. It's enough fighting her to stay off YouTube and Snap Chat when she isn't on Wi-Fi. In the house, I am a Dish subscriber, and get SiriusXM music through my satellite TV.if your wife is paying for a SXM subscription, streaming is included.
Go into her account, set up streaming user name and password, put the SXM app on your phone and if you have a good enough data plan you can stream SXM via their app to your truck radio which I'm sure has at least BT connectivity if not Android Auto or Apple Car Play.