Also Sprach Short Wave Sportfishing :

I don't know how true this is, but I have it on good authority that
there is a company that makes master keys for law enforcement
departments, car companies and locksmiths that has every single master
key ever made for domestic cars from 1950 forward.

It's actually very easy to make your own master key. For any lockset that
uses a master key, you can reverse engineer it with nothing other than 6
blanks or so and a small file.

http://www.crypto.com/masterkey.html

Dan

--
I love California, I practically grew up in Phoenix.

-- Dan Quayle