Power Acoustik PTID-5800 Car Video Player "radio usb error" Questions

when trying to play an ipod, it says USB error and goes back to radio try resetting the radio

...usb, and radio??? I have a power acoustik ptid-5850n and all of a sudden it will not read any disc at all. It says disc error or error and wont play anything. I have only had it for a few months can ...

radio its reading usb error it's saying disconnect your usb then hit done. but the usb is already disconnected? how do i fix this plz help hit done?  But first read through the manual and