Sentry key is standard on the WJ. Whoever told you that they cannot "make" them at the dealer is full of it. They order the key blanks, cut them to your Jeep,, then they need to be programmed with either the Scan tool or with two good keys. Or if you really wanted to, you take the one good sentry key, attatch it to the inside of your column cover near the module antenna, then you can use any normal key cut to your ignition code to start the Jeep.