I own both an FT897D and an FT857D.? I have three power plugs that are supposed to be for the connectors on the FT897 and 857. All three work perfectly well on my FT897. However, none of the three will fully seat on the connector that is on the wire on the FT857. I have a hard time plugging any of them in on the FT857. Have any of you encountered this? I haven't been able to figure out WHY the connectors won't fully seat on the FT857 connector.