Im trying to use pierogi with a small Panasonic stereo SCPM500GNK. While most basic function are working fine with "Panasonic audio keyset 2" the "change input" button works only to select cd input but it is impossible to select the other inputs and also play button has no effect. The other audio keyset are even worst or not working at all. Have you any other audio keyset for Panasonic devices?