The manual indicates you can save a music play list to a Favorite button. I can't figure out how to do this. Someone else posted that they did it and I'd appreciate instructions to accomplish this. I've looked through this forum and haven't found the answer. I'm using an SD card with music and playlists on it. I can save to a favorite button Artists, Songs and Genres but not a play list. I'd also like to know how to save a destination and a phone number to a favorite button.