Your wifes lumina has the easier bypass,you can just use a digital meter to read the key,get one of the same value + or - 10%.Look under the steering column,you should see an orange wire,look for a connector on this wire and you will see the two white wires inside,these are the ones you need,make sure you cut them both,then hook the resistor between the two wires that go to the computer. any questions then email stilts at snipped-for-privacy@hotmail.com