Streaming Music Free

I broke a 30 year habit of keeping a stack of CDs in my car because my Spark doesn't have a CD player. That drove me nuts. I priced streaming services. My previous vehicle had SiriusXM but that got expensive & the sound quality was poor. I learned I could download the Pandora app on my phone & plug a USB cable from the phone to the port in the car & it plays over the speakers. Free. I could upgrade to no ads but the ads aren't constant like AM/FM radio. Sound quality beats Sirius XM & saves me almost $300 a year. I'm not techie enough to research every option & learn how it works but I'm happy with this so far.