car stereo not compatible with iPhone since iOS 7

Since installing iOS 7, my iPhone 4S is no longer compatible with my Pioneer car stereo to use video. I can still access my music and contact for bluetooth, but when I try to use Netflix for example, it gives an error message on my phone. This was working normally when I was using iOS 6, so there is a glitch with iOS 7. I can't seem to get any help from Pioneer or Apple support...so I'm asking you folks to help me please! Is there a way to get this working again or do I have to wait for the next software update?