There is talk on other forums about how to get about 75% off a Sirius Satellite Radio subscription, but be careful!
I signed up for Sirius in my wife's new Audi and managed to eventually get about 75% off the normal rate. (We were wishy-washy about getting it - my wife has a profound hearing loss.) I explicitly stated that I didn't want a subscription and was clearly told that there would not be any automatic renewal. The satellite service stopped after about nine months and we thought, "close enough."
Then I see a $155 charge on my September AMEX statement. I call up Sirius and after being on hold for 20 minutes, talk to a nice representative who agreed to reverse all of the charges, except for a $25 prorated charge because I didn't call in soon enough. I explained that the recurring charge was never authorized and that I should actually be entitled to a prorated refund because the first year of service was shortened to about nine months.
So, I get transferred to a supervisor who doesn't bend an inch even though I'm as pleasant and reasonable as possible. (Most of the time, my disputes end with the CSR thanking me for being nice - they have tough jobs!) Anyway, the supervisor takes a firm stand and even tells me that if I dispute the charge through AMEX, Sirius will pursue their claim through a COLLECTIONS AGENCY!!!
I finally called AMEX to make sure that my card wouldn't be used for any more recurring charges and the card company rep told me that she gets lots of calls regarding unauthorized Sirius charges, perhaps more than for any other "legitimate" company.
My advice, stay away from Sirius unless you think their service is worth full price or unless you have the tenacity to follow through with disputes.

