I've had the PA15-TOY unit for 2 months now and suddenly it stopped working with my iPhone 4 however my wife's phone still works and my old iPhone 3G still works. I've narrowed it down to the update version - because of work I need to have the latest Apple firmware or my work won't allow me to connect to the network to read emails and view my calendar.
Here's something else I noticed, I have the playlists named as TOYOTA1, TOYOTA2, etc but my wife's phone and my old 3G do not however they play fine.
My question to anyone on here with an iPhone and the PA15 unit: what. Erosion of firmware do you have? I have 5.1.1 wife has 5.0.1 and 3G has 3.0.1
Update: My 3G has been updated to the latest firmware and no longer plays, my iPhone 4 still has 5.1.1 and both are not recognized by the PA51 unit. My wife's iPhone 4 5.0.1 still works in the truck without a problem. Beginning to think it's my phone since there are replies below stating they have 5.1.1 working with the PA15 unit.