Hello I have been very slowly fixing a a 92 VR6. The Aux water pump was missing and the heater matrix had been by passed. I connected everything to how it should be, the windows steamed up water started coming out of the vents. Now i need to replace the matrix to get it working properly. Does anyone have any advice u am fairly sure its a dash out job is there anything I should do to make sure I do so I do not anything also before I did this foam was comming out of the vents does anyone know where i can get replacement foam?