I have a 1984 nissan 300zx turbo, and I am trying to put an aftermarket boost gage in the place of the stock one in the dash. I have the gage cluster modified and i got it to fit but now I need to get the new cluster to fit in the dash. There is a heater duct right behind it and if I take it out the new cluster fits right in. I need help on how to get the darn duct out it is stuck and I don't know if I am missing something.