probaly the aq's because aparently g6s arent loud with aero ports out the side. WHICH is what a box designer told me to do >;(
Take out the side panel cushion things on each side of the backseat, then the plastic piece above the seat, fold the seats down, cut a small little triangle out of the metal that the plastic was covering on each side, then make the box 13.5h, 39w, whatever deep. IT IS A BITCH to get it in there, but once you do the trunk is like 80% sealed off just by the box.