Interesting thing I found out. We were shopping for a car and were at a toyota dealer. I asked if a certain vehicle had xm because that's one of the things I wanted. He said that Toyota is putting xm in less vehicles in favor of Entune, which would include being able to use pandora. Of course it has to be used with a smartphone and would use data. But if I want to use pandora I can just use the aux jack and use it on my phone.
At any rate, the car we did pick does have xm and it's new so not all of them are Entune only. And according to the website for Entune, only certain phones are compatible, which is odd. Only 2 android phones are listed.