Good morning, can anyone shed any light on what is happening with my rega P2 turntable. when my p2 is connected and I, select phono stage on my amp there is an audible humming coming through the speakers . This stops when i disconnect the rca from the table to the amp , therefor i can eliminate the amp from this problem , this leaves the turntable itself , i susect it is a grounding/earth issue but i can not work out how to stop the noise which is driving me insane . Any ideas ?