*This post originally posted on July 22, 2016 has been updated to reflect new information.
Upon purchasing our car last year, we received six months of free Sirius XM radio. Then, one day, while glancing over my credit card statement, I noticed a charge by Sirius for well over $100. Immediately, I called them. They explained that my trial period had ended and claimed that they had no promotional offers available. If I wanted to save money, they said, I would have to choose their lowest plan, an abbreviated version of what I currently had, with half the stations at a price of $10.99 per month.