Ok appologies the whine is still there, although with the head unit properly grounded it is a fair bit quieter.
EDIT: OK I have solved the problem of the stereo whine. If I connect a wire from the head unit ground to the outer shield on the RCA there is absolutly no whine, what so ever. Next problem why would that fix it and is there anything I can do so I don't have a "farmers fix"? Now I can go to bed without trying to solved the problem while I sleep, LOL..
Regards A