hi i have owned fiat 500 pop for the past month i tryed to hook up my iphone found out it dosent work so i bought the adapter and everything was fine until yesterday when i plugged in my iphone and it said i had no media. it kept charging the iphone though like it would if you plugged it in with no adapter just i cant listen to my music

at first i thought it was broken but as it kept charging my iphone i was thinking maybe its something i can fix instead of having to fork out another 70 quid anyone know???