Any advice? Can't figure out how to remove the trunk latch assembly (Darrin). I removed the cotter pin and retention ring, but there appears to be some sort of square peg preventing the cylinder from sliding out (see pics). Anyone have an idea how to remove this square block -- or do I even HAVE to? Perhaps I am going about this the wrong way? Once I get the cylinder out, any tips to remove the escutcheon? Thanks!!