Since I replaced my crappy standard phono cable with a high end Audio Note phono cable, I have been plagued with severe contact noise. Every time I, or someone else in the building turned a switch on or off, I heard a loud POP in my speakers. Nothing I need to experience at all.
So I grabbed the bull by the horns and decided to solder a hair-thin wire between the frame connections and the ground lead in the SME connector. Not an easy task, since everything is so damned small in there. There's only 3 mm's between the solder points. I managed to do it though, and the below drawing shows what I did.
Lucky me don't have no contact noise anymore!