European 2011 Nissan Qashqai my wife has a Nissan Note both our 4S phones are not working as they should with the Nissan connect system via USB.
There have been no issues with the phone or bluetooth but the phone tries to connect several times to the system via USB then after a while I get Communication error on the car screen and on the phone this iphone is not supported by your USB device.
However that's not the whole story.
For my wife her phone does not connect at all since the update but I have been luckier.
I have four situations
Either
A) it just doesn't connect and gives a message
B) it tried infinitely to connect during my whole journey
C) it works as it should for the whole journey
D) it works for 5-10 mins the decides there's a problem.
I have the App "downcast" for podcasts.
The apple podcast app gave my phone huge problems I wouldn't be at all surprised if it's the podcast app that is causing this problem. (check out the forum thread on apple's podcast app.