06 Cadillac STS won't start!!! Help!!
 

Where is a nuetral safety switch located on an 2006 Cadillac STS. I just bought this car from and auction, there was no key. So I got one made, tried to crank and it says it's in as accessory mode then tells me to press break and push start button. When I do everything goes off for a few seconds and comes back lit up. Then it tells me to shift to park. I need help!! I read a lot of people online saying that it was their Neutal safety switch. Is it true??