Ok, my first of many stupid questions. I have a 72 bug, how do I fold the back seat down. Can it stay down? do I need to remove the bottom portion of the back seat? What is the strap looking thing (pics would help!) And no, I am not joking. New to the bug and looking to do a few things such as, new stereo system, and possbily might like to leave the back seat down looking like a "two seater" any help will be apprec.