Got sirius in two cars and its great. A few dead zones behind buildings due to satellite trajectory, but pretty reliable. I listen to #18 underground garage. Some talk and no commercials, but still a tad $$$. We travel cross country un-interrupted; but it aint free.
Im now using google wireless (think ALEXA) in the shop that plays on request from the wifi in the house. Its a tuff call but the google should be available on the car radio too. Sirius has a 200 channel line up which is good, but still plays re-popped hits from other artists' to get away from copyright infringement. That kinda sucks when you know a tune by heart and the chorus part has a few different lyrics and chords that ruin the continuity of the original act. JMHO... Bill