According to the SiriusXM web site the lifetime subscrition is for the receiver, not the individual. Most people would think that a lifetime subscription would be for thier lifetime but you can’t expect 50 years of service for $400.
From the SiriusXM web site:
If you have a Lifetime subscription associated with an automotive receiver, those are not transferrable unless the receiver was stolen or is defective. But if you have a Lifetime plan associated with a home, portable or dock & play radio, then these Lifetime packages are transferrable from one radio to another radio on the same platform up to a maximum of 3 times. Ther is a $75 fee for Lifetime package transfers.