If you have the Multimedia Package, part of the Navigation, you can stream to the GLA from an iPhone. I do it in my car. There is a "Disk" button on the radio that cycles the built in 10GB music register, CD/DVD, SD Card Reader, USB hard drive, or Bluetooth Audio. It works really well. I don't need to even do anything on my phone, just start the car, press Disk for Bluetooth Audio, and it will start playing the last thing you played on your phone. You can use the skip and rewind buttons to go to next and previous track. You can also listen to Pandora, or even send the audio from a movie on your phone. My daughter watches Movies on my iPhone 6 and the audio plays through the car speakers over bluetooth.