If you go to the Sirius website the 50 rebate is only good if you sign up for a subscription of Satalite service.
Offer valid only on a purchase of any eligible SIRIUS receiver at participating retailers from October 30, 2005 through December 31, 2005. SIRIUS receivers purchased from BJ_s, Costco, Sam_s Club, Target and Wal-Mart are not eligible for this offer. Offer open only to residents of the United States (excluding Alaska and Hawaii) who are at least 18 years old. An activation, paid by credit card or SIRIUS prepaid card, must be activated no later than December 31, 2005. After completion of the initial subscription period, service will renew automatically for additional periods of the same length on SIRIUS_ standard Terms & Conditions. To receive the mail-in rebate, customer must submit original or copy of the receipt of purchase of the eligible SIRIUS hardware, the original UPC code from the hardware packaging, original or copy of the electronic serial number of the hardware and a fully completed redemption form to: SIRIUS $50 Rebate Offer #6010, PO Box 42934, Mesa, AZ 85274-2934, postmarked on or before January 31, 2006. Customers may prequalify for rebates at sirius.com. Once the necessary documentation has been submitted, SIRIUS will verify that the account has been activated and remains active and in good standing and mail a check for $50 to the name and address on the redemption form within 8 to 10 weeks. If you have not received your rebate within 10 weeks, check status at sirius.com or call SIRIUS at 1-888-539-SIRIUS (7474). Activation fee and taxes may apply. Limit one rebate per ESN. Service cannot be assigned or transferred. SIRIUS makes no warranties with respect to SIRIUS-compatible hardware. Subscription to service is sold separately from hardware and is supplied in accordance with SIRIUS' standard Terms & Conditions. Service may not be available in all areas. Cannot be combined with any other gift or rebate offer. Cannot be sold or transferred. SIRIUS reserves the right to modify or terminate this offer at any time. All fees and programming are subject to change. Void where prohibited or restricted by law. Rebate fraud will be prosecuted to the fullest extent of the law. © 2005 SIRIUS Satellite Radio Inc. _SIRIUS_ and the SIRIUS dog logo are registered trademarks of SIRIUS Satellite Radio Inc. _S50_ is a trademark of SIRIUS Satellite Radio Inc. All other trademarks, service marks and logos are the property of their respective owners. All Rights Reserved."