Here is what I am working with. I want to build a platform on top of this to bolt my subs to, but I can not think of a brilliant idea to get this platform to lay flat.
I am getting a piece of 22" by 53" to play across there, and need to make sure if is secure to the frame, sturdy, and level. I think thinking either that harding foam of some pieces of aluminum bar with a hole in the middle for a bolt. Ideas?
06 Chevy Malibu Maxx LT
DC Power 270xp
.... so far