Originally Posted by FEandGoingBroke
That's an anti theft device. Should be coupled with a small speaker under the hood for the optional alarm sound when your car is being stolen. Most often just anti theft.
Remove the small card in the slot and your car will not start.
Thanks I wasn't 100% sure. I took it out today. I started having issues again with the car not starting and decided to just take it out. Now I have no problem with it starting. I guess this is part of the joys in buying a used car that someone else has had their fingers into. Thanks again