I'm a new 2012 Sonata Turbo owner. I want to download music into the "My Music" system, which says it can hold up to 6000 songs. I looked in the owners manual...nothing. I called Hyundai and after 3 customer reps and 25 minutes no one knew how to download music. I plug in my iphone (using the USB) and I get nothing. (except the system plays music from my phone).I also tried downloading music from a USB flash drive with no success. Can anyone tell me how to download music in the the "My Music" feature?