Last summer my wife and I took a road trip to Cincinnati and Toronto. Our rental car was a 2016 Hyundai Accent equipped with Sirius XM Radio (most rental cars come with Sirius XM). I knew a bit about satellite radio before. Having it in the rental car was the perfect amount of entertainment on the road. Check the video.
Most new cars come standard with Sirius XM. If you have an older car you can get this kit for $30. Sirius also offers free kits if you purchase a six-month subscription. You have to search for that deal on their site.