I have a '07 LR3 and have recently noticed a lot of "chirping" in the dash behind the instrument panel. It seems to only happen at speeds above 55mph - any ideas on what this may be?

 

you found vern my pet crickett, please catch him and put him in a box and mail him back to me. Tell him the kids miss him

 

I had the same problem a few years ago. I thought it was something behind the dash but the dealer knew exactly the cause. It's a plastic sheathing on the passenger side of the windshield exterior that needs replacement. (it shakes at high speed).
It's under warranty.
After they fixed mine I didn't hear the noise again.