I'm fairly new on this forum so forgive me if this has topic has been discussed before. After your trial subscription or for renewal do not pay what XM wants: You can do better!
My trial subscription expires in 2 days on my 2010 FX35 plus I needed to cancel the subscription on my 08 G37(trade-in) and my home subscription before they renewed it automatically at full price. Told them I was cancelling everything as too expensive for minimal use. They shot me a deal at half off plus 2 subscription discount with no transfer fee for the new vehicle. With the refund of the 3 weeks remaining on the old subscriptions I got a year on both car and home for approx $150.
I enjoy XM radio but now even more!