Cant find a reference here, so want to post my experience. Here in Oz there is a man who can make new keys from photos - he does many for US people as well as locals like me. Contact firstname.lastname@example.org and send a picture of your key(s) and he can decode from that and reproduce. He will also provide the code for future use. Got my 3 keys done just now. Have never heard of a failure, even with Porsche keys which have their cuts at an angle to the blade, not many key cutters having blanks or machines that can do those cuts.