I got a SiriusXM antenna thing and they paid me for it lol
My car radio (a Pioneer one I installed many years ago) supports SiriusXM; I just had to get the right receiver for it. SiriusXM were having a sale where you’d pay $70 for the receiver but they’d give you a $70 rebate, making it free. During the rebate period, Crutchfield had a sale where they reduced the price of the receiver to $30. I bought it for $30, filled in the $70 rebate form, and they gave me the whole $70 rebate.
I’ve been on a $5/month promotional plan for a few years. Whenever the price goes up, I complain to them and they reduce it back down. It’s a pretty good service for $5/month, since you get both satellite and streaming included. Satellite is good since it works all over the USA - good for road trips.