I can confirm that Rockbox 3.2 on the iPod 5g / 30gb does not fully work with the KCA-iP500. It charges and audio works, but all the controls on the head unit are dead. No song info is displayed on the head unit either. On the upside, the song info is still displayed on the iPod and the controls on the iPod still work. (Unlike the stock firmware that just shows the KENWOOD logo and stops listening to the iPod controls while connected to the KCA-iP500.)