The original metal dash that you have IS what the wood veneer screws onto. If you try to totally remove the metal dash from the car you will find that it is a integral part of the body of the car and is bolted on at the top, sides and bottom by way of the dash support. You DO NOT get rid of the original dash but simply cover PART OF IT up with a wood covering. No modifications are needed for the original dash to get covered up by the wood veneer. I do not know if the five or so screws that hold the veneer onto your original dash will need to be drilled into the original metal dash, but that is about all of the modifications needed.
Charley Fitch
