Have had their service in several vehicles as far back as the year 2000 when they were called XM Satellite radio and it was way, way, cheaper..
Their music sound quality is really bad compared to anything on the Internet, and it sounds like they have never even tried to improve it..
The only thing they have going for me anyway, is that they are always on, and when I make that yearly 4k mile round trip, I have lots to listen to and they really have a lot, right?
I recently sent them a hot email and it took awhile to figure out how to find their address, telling them I was through because they would not let me log in and change my account information..
They emailed back all worried ( I bet) and said to please call them back and they would fix this for me.. yeah, uh huh...
I think last I checked, Spotify had the best Quality of sound on the Internet having blown long past Rhapsody, and Pandora, etc...
There may be other newer music services that have higher quality of sound, so speak up, young whippersnappers...
Now, how to get the Internet music in your car without using your dang phone which will along with the cell site probably, lower the quality of the sound before it its your radio in the car..
I know there is way better wireless sources, because I just got my DirecTV hooked up and they used all wireless boxes instead of miles of really nice coax cable stapled up all over the eves of my house, and I have to tell you, the picture quality alone is coming in at 1080p easily anywhere I have a TV..
Hope you get this figured out, mi Hermano Ronaldo... Lets all do a Group-WE-ARE-GOING-TO-CANCEL-YO-AZZ-Sirius-LameBoys, and see what they say....
Dan F