This squeaking seems to be coming from behind the gauge cluster. I have had it out and can't pinpoint it. It seems like it may be behind the vent that comes out of the top of the dash but I can't find it. It appears to happen mostly when I am driving about 80mph with the a/c on. I don't think it's the a/c because it continues after I turn it off. Seem slike tha a/c and speed are what causes the vibration and subsequent squeak. Nothinb rubbing on the firewall under the hood. Could it maybe be the cables coming out of the firewall? I'm stumped, please help if you can.