I was going to do the same thing in my 72 Chally. I picked it up at Carlisle, Dashtop brand, for like 80.00 or so. Mines a single speaker non a/c car so it wasn't that involved to do. You have to remove the speaker grille and A pillar covers. Well, I did a mock up dry run of it and was promplty horrified. I'd rather look at the two Grand Canyon split craters in the dashpad than put on the cover. It was a nice piece but not worth the effort. I sold it on the Bag that day. I'd sooner put a shag carpet up there than the dash cover. Though I have seen them installed fairly nicely I personally wouldn't recommend to install one. Mine was going to be temporary but I squashed that whole idea. My opinion anyway...