Neon console in a 72 dart!

Well i am experimenting with it but i dont know how its going to work. It even has a place where you can drill to put in 3/16 gauges! i have a few pictures. it may just end up being a lost cause though....... i will have to grind down the cup holders. good thing nobody will be eating or drinking in my car =). Whats a good thing to cover up holes in plastic?