Right this second, as I type this on my computer:
Pandora Subscription service through the Altec Lansing computer speakers and a subwoofer, with a 115 volt power supply. When La Grange is on I occasionally hear from the spouse to "turn that down!" and she is in the living room in the center of the house and I am in the corner office.
When mowing the yard, I listen with noise canceling Bluetooth headphones, and my cell phone as the source of Pandora. Same for working in my garage, only a iPad 2nd generation my wife used when new, hooked to cheaper computer speakers powered by the 115 volt wall socket and the iPad WiFI from my router.
In both cars, I have a 32 GB thumb drive, with all 130 CDs I own ripped to max quality, minimum compression MP3s. In the 911 I have the Blaupunkt Bremen that I love. It has two different USB connection, and a SD card. The SD car I have is one that is really old and only 4 Gig, and has just my favorites, the others have either all the songs, or just special albums.
I have not listened to radio in many long years.
I have used Pandora for a long time, and pay the subscription fee for unlimited listening. I have a "Glen's Favorite" channel and lots of thumbs up and down songs. They are doing a great job of throwing in artists and songs I had never heard. Rob Zombie was one I had never heard and he has some nice "easy listing"
music. I have a lot of Southern rock and Pandora throws in an occasional C&W song with some nasal twang, and it gets a quick thumbs down, and we carry on.