SiriusXM 3 months free car satellite radio trial, no credit card required

SiriusXM is offering 3 months of its Platinum car satellite radio plan free with no credit card required. The offer is available only on qualifying inactive radios, and the trial simply ends at the end of the 3 months unless you choose to buy a plan — no auto-renewal on this offer. Sign up on the SiriusXM free-trial page with your radio ID or VIN.