Have an older car that's not satellite radio ready? Now it can be! Plugs into power port and transmits satellite radio over FM so you can tune your car radio to it. Unit mounts to car air vent. Amazon is selling them for $50ish, so how about $30? (You will have to pay for the subscription separately on your own).
https://www.amazon.com/SiriusXM-SXP...6325&sr=8-2-fkmr1&keywords=siriusxm+head+unit
https://www.amazon.com/SiriusXM-SXP...6325&sr=8-2-fkmr1&keywords=siriusxm+head+unit