I just called up Sirius to switch to a lifetime plan - and asked about switching radios later:

Rep: "you're technically not supposed to be able to do that."

Me: "the website says you can switch radios up to three times for $75."

Rep: "we changed that months ago, but some people still manage to switch."

Me: "well if I'm thinking of switching radios 5 years from now - it doesn't sound like I'm going to be covered very well on this one."

Rep: "no, probably not."

So am I just out of luck here? Is Sirius that bad about updating their website? The math doesn't work nearly as well if you're out of luck as soon as you change cars or have the radio break...

Thanks for any advice...