Would you believe?

Will wonders never cease!?! I sent in for for auto tags only about 4 days ago, and I have already recieved my tags! They are on my car as I type this. I still cannot figure out how to add music here. People have told me that it is easy, but for me it is hard! People say all you have to is download this and upload that and crossways this and that and the other and I say STOP!!!! I just figured out how to cut and paste 4 years ago lol.. any suggestions?