So first and foremost this is a great forum was very useful during my install. Now onto the problem. I have a 2010 Nissan altima. About 2 months ago I installed the pioneer 920bt. The unit has been working fine until last night when I took my first long drive to visit family for the holidays. I have the newest Itouch connected to the ipod video cable(Ive read the ebay thread. I purchase the cable from sonix electoric). The cable has been working fine playing video and idop perfectly fine till this morning when it was working then I stop to go to the store when I came back and started the car I got ipod authentication failure. The Ipod is still being charge but I have no idea why it will not connect.

Did you unplug it and plug it back in?

ive unplug the ipod and the connection cable. I havent unplug it from the back of the 920bt yet. was gonna wait till the morning or see if anyone new what was wrong before i rip apart my dash.

Did you restart or reset the unit and did you try a restore of the iPod?

Did you restart or reset the unit and did you try a restore of the iPod?

did a restore on the ipod no luck. the ipod is still being charge by the unit. but im still getting the error. I do not know how to do a master reset on the unit

Search "reset" in the pdf manual.

reset the head unit and everything is working fine thanks for all the help