some good read. Check it out before you upgrade to the Pioneer v4.6...It might save you some frustration.
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Same thing happened to me... No Worries. This will help.
Ok, I figured this out. For any of you that had or has the similar problem with their AVIC-Z140BH. This is how i fixed it. If your using the iPhone 5 OS 7.0.3 or newer. DO NOT INSTALL the V4.6 reconmended by Pioneer. It looks the same and there are no big noticable bells and whistles. BIG COMMUNICATION ERROR between the iPhone and AVIC.
If you have already installed it, no big deal. Here's how t