Originally Posted by msorbara10
I would rip the old headliner off. The reason for that is because you still have to put in all of the old trim and some of it will be a struggle to fit back correctly as well as making it look like it was always there.
Just rip the old headliner off and get a wire brush and keep scraping it off. It does take a while and is kinda annoying but it will just come out a lot better and will also hold up a lot longer.
If you do choose just to spray it then I would put a lot of glue on it. But putting it on top of the existing headliner may make it loom too thick and can even be hard to make it look even.
And go on eBay and type on black foam headliner and you will find what you need.
Good luck let me know how it goes
Ok, true enough I hadn't thought of that, thanks for the input. I'll follow the how-to