[CanadianCamaro]

Strong magnet and a polish rag. Remove the lid liner, locate the nuts, place the magnet on underside of lid surface with polish rag between the magnet and the painted surface, slowly pull the magnet along the surface to an openning. The nut should come along for the ride. I used a micro mag light flash light and a small inspection mirror to look down inside the trunk lid while doing this to see if I had picked up the nut.