Chattering noise from dashboard area

[PaulE]

Hi,  for some time now I get an intermittent chattering noise which appears to come from the area behind the gear change stick. Sounds like a relay going mad - goes off after a while or comes on for no apparent reason. Everything seems to work ok and no fault lights on the dash. There is a quiet sort of "rushing" noise  associated with it - like a liquid running through a pipe but I don't think there is any pipes behind there. Any ideas???