Look into reprogramming it. I saw some videos on youtube regarding how cars with keyless ignition can easily be stolen, and it looks like if you buy a ~$60 device off of ebay and have access to the OBD-II port you can program a new key fob to work with the car in just a few minutes. My guess is you could also reprogram a current key fob to work with that car (saving you the cost of a new keyfob). Hope you can figure this out!