2001 V70 2.4 Estate. I have a strange noise coming from around or behind in the area of the passenger part of the dash, right hand drive car. The noise happens around every 10 seconds sometimes less and seems to happen more when I drive as apposed to my wife. The noise is like two short clicks like a cricket would make almost like a buzz. It does not seem related to movement or happen when the car is stationary with the engine running. Any ideas please.