Tremendous RF problem -- phono stage is a radio


I have got an intractable problem with FM reception through my phono stage. What is the cure for that? I have switched cables, changed grounding schemes, etc., all to no avail.
lapaix
What is your specific equipment and how close to a radio station tower do you live?
I live in an area prone to RF interference, and I had problems with my previous preamp, a Copland tube model. It picked up taxi radios, among other things. When I switched to a Klyne SK-5a, the problem went away. It could have been the Copland's design, or it could have been the tubes.
Have you tried different lenghts of cables? The interconnect may be the proper antenna length for your local radio stations.