Answer:
You have to first detach the steering column and then unbolt the dash. Including a bracket that is way up in the middle of the dash. It is an involved job at first but if you have to do it again it can be done in less than 10 min with the whole dash coming out. Then remove the black plastic cover that is in the middle bottom. This is the cover that is over the heater core. When I put my dash back in it was such a hassle to put that bracket back in that I just left it out. I have not seen any problems with leaving it out.