Just recently, in the past week, my unit has stopped playing music off my iPhone 4. I can't figure out why. I've restored my phone, and I've reset my unit but no luck. I believ my cable is still working because it still charges my phone, and the unit does recognize that it's connected, but it doesn't play. Has this happened to anyone else, does any one have any ideas as to what to do?

did you try changning the input from bluetooth to dock connector on the iphone? When you are looking at the ipod/iphone at the bottom right side of the screen there is a little icon that lets you change this.

I'll look next time I plug it in, but my Bluetooth has been off, also I don't have the Bluetooth adapter for the radio.

The weirdest thing is before I could never get movies to play off of an sd card. It would always say it was an unplayable file, even though they were divx. But now my movies are playing but my phone won't play, idk.