Boost gauge has a mind of it's own
I've had an unusual problem with my turbo gauge in my 2.4 Brera since I bought it 2 years ago. Most of the time it doesn't move at all, sometimes it will work correctly for the first 5 minutes of driving and sometimes it will be totally erratic, flicking from maximum to minimum regardless of whether the car is stationary or accelerating. Through all of this, power is consistent and strong and I've had McLennan's in Edinburgh confirm that there is nothing wrong with the turbo itself.
I'd love to get into the back of the gauge to check the connections but can't for the life of me work out how to get in there. Can anyone help shed any light on how to remove the gauge or, alternatively, where the wiring comes from/goes to make the thing work?