Hi all after upgrade to iOs 4.2.1 i cant get movie to show up on screen.

Have tryed many difrent things but it wont play, I also have a "filter" on the sound when playing audio.

I have search some around and see many places that not just pioneeer have this isue,

Volvo (unknown usb)

and many more, so it seams like Apple have changed somthing.

4.2.1 works fine. Try turning your iPhone off and back on, it should fix it.

Also are you using the Pioneer iPod cable.