USB connection stopped working in fiat grande punto?

I have a 58 plate fiat grande punto and have had it for about 3 months and last month the USB stopped working. I used to plug my iPod in to play the music from this. Now when I plug it into either of the USB ports it just says connected but when i change the source on my steering wheel I can't find the 'USB' source. Also when I plug my iPhone in, it vibrates when I first put it in but it doesn't actually charge at all.

Anyone got any ideas of what's going on, and got any suggestions of what to try?

Go though the settings in the menu option on your right hand side where you would change your clock and turn off daytime lights you should find it there or give the dealership a ring