I replaced the ignition lock cylinder, switch and the housing for it. The new key is a plain key /no fob. I put the new key on my old fob and when I start the car it turn over fine for about 5 seconds then flashes no key on the dash and shuts off. I now know I could have bought a part with my vin and it would have been ready to go but since I have this other one already installed what can I do to make it work? Please any help be appreciated. I need to get this on the road asap.