So ive got a question.... I have the ipod hookup on my Pioneer AVH-4000 and when I hook up my Iphone it says on the phone that its not compatible message, has anyone else had this problem? Any input would be good....

 

sounds like its just saying that "Charging is not supported by this accessory" and to turn on airplane mode to not have disruptions while music is playing. I get that on my alpine headunit. hard to say if you dont tell us the exact message