Part of my motivations in installing SXM was after driving out west and losing service for many hours at a time. Sometimes where you want to go doesn't have cell phone towers.
same here, on a very similar drive. the first road trip I took in the 3 when I first took delivery in 2018 was through south Dakota, Wyoming, and Utah. after having to listen to the opening weekend of college football in fits and starts, I said never again...installed the onyx a few weeks later, then of course went this route once it was figured out.