I have a 3rd party 6-disk changer to iPod/Aux adapter for my car. The playback still works fine. I'm able to switch tracks with the steering wheel controls, and advance through my lists just fine.
Now, the connection isn't USB, so that is probably where the problem lies.
So it seems like the dock connection works fine, but the USB may not be. There's an awful lot of posts for less than a week all explaining the issue as you.
I would then say that, yes, there is a problem with the USB connection with vehicles now.
iphone 3gs, avhp3200bt pioneer stereo, 4.1 update
music has static pops etc during playback thru usb port,
tried stereo exchange
tried 4 different cables including $50 pioneer ripoff
tried restore on phone
tried phone exchange
still doing it,
does not happen when using headphones, speaker on phone or when docked to older stereo that doesnt control ipod
the first time i caled apple they said o well looks like it wont work with your stereo anymore, almost blew my top then senior advisor did try to help with restore and new phone swap unfortunatly it still doesnt work
anybody have a fix?? tried everything i think