new ipod not charging with adapter. anybody get this message

Note: iPod nano (4th generation) does not support FireWire and will not charge from any FireWire-based power source. If you connect an iPod nano (4th generation) to a FireWire-based charger or accessory, you will receive the "Charging is not supported with this accessory" screen below:

Any thoughts on charging while in use I have the ken 232mr with ipod connector looks like i may have to upgrade HU based on usb ports to charge and play, ( problem i also have this is the suburbarn and same message)