The squeak could just be the two dash pieces rubbing against each other. Every now and then I get a little squeak coming from the gauge cluster area, but if I reach up and squeeze the top of the dash (the lip above the gauge cluster) the squeaking goes away. When you put it in neutral and the engine goes to idle there isn't as much vibration in the car so whatever is squeaking stops (same with my squeak). Like rsteinmetz70112 said, our gauge cluster is all electronic so there's really nothing in there to squeak; now the gauge cluster itself could squeak if it was a little loose.

Lube up your dash and everything will be fine.