I'll be very brief.

I own both Sirius and XM.  XM in one car, (didn't want it but they could not take it out, so they gave it to me free), and Sirius in the other.  I find XM programming so bland I listen to discs in that car.  In the vehicle with Sirius, I listent to Sirius almost exclusively.  I also listen to Sirius over the internet, (no charge for those that have any Sirius radio, home or car), all day at work.

Once my XM free 90 trial period ends, it will be turned off / canceled.  Sirius is certainly worth the small monthly charge-

Eric

San Diego, CA