XM Satellite Radio is now offering a free two-week subscription to XM Radio Online when you use a special coupon code. Normally the trial subscription is three days.

To access the free XM subscription, use the promo code "FREE2AIR14" when you register. As always no credit card is required, just a valid email address.

It's interesting timing for a promotion like this. Two weeks still gives plenty of time to purchase a radio by the Holidays. 

[via Deal News]
Thanks tim!