In my not-so-humble opinion, you're better off getting a smartphone and an unlimited data plan with your cell carrier. Granted, that's not for everyone. I would be out of luck for much of my commute as about 20 miles of it is through rural land, but my iPhone has an iPod as a backup when online radio isn't available.
The unlimited data plan is only slightly more expensive than satellite ($4/month or less than the Sirius/XM monthly subscription) now that the prices have increased, and you have a lot more options. It's just more for your money. You can also get an FM transmitter for your smartphone if your car radio doesn't already have an auxiliary input for less than your typical satellite receiver. I've been without satellite radio for awhile now, and I don't miss it.
The Unlimited data plan is like $80 for the cheapest ,you cant just get data,you need the phone service too.
If you do get the data only its $50 a month.
Sirius is like AROUND $12.95/mo when I last checked.
how is this cheaper exactly?