offer details for Streaming Platinum package: 

Activate a SiriusXM Streaming Platinum subscription plan and get your first 3 months for $1.00. A credit card is required on this offer. Service will automatically renew thereafter every month. At the beginning of month 4, you will be charged at then-current rates (currently $10.99/month). Fees and taxes apply. You must cancel your subscription during your promotional period to avoid future charges. Please see our Customer Agreement at www.siriusxm.com for complete terms and how to cancel, which includes online methods or calling us at 1-866-635-2349. Promotional fees and taxes are nonrefundable and there are no refunds or credits for cancellations during the promotional period, except where prohibited by law. If you cancel during the initial promotional period, you have the option to continue service through the end of your paid promotional period. All fees, content and features are subject to change. This offer cannot be combined with any other and may be modified or terminated at any time. Offer available to new subscribers. Channel lineup varies by plan.

offer details for Music & Entertainment package:  Activate a Music & Entertainment subscription and pay $1 for your first 3 months, a savings of 98% off the current monthly rate of $17.99/month, plus get free activation (an additional $15 savings). A credit card is required on this offer. Fees and taxes apply. Service will automatically renew thereafter every month and you will be charged at then-current rates. Please see our Customer Agreement for complete terms and how to cancel, which includes calling us at 1-866-635-2349. All fees, content and features are subject to change. This offer cannot be combined with any other and may be modified or terminated at any time.