[key fob] reprogramming the panic button

Is this even possible? I want to use the panic button to auto start the car since the vehicle is already equipped with autostart, but the fob I have for the car does not have the auto start button on it.

I have looked on teh interweb, but to no avail....

Check the Owners Manual that came with your car. It should have the required details for reprogramming the fob, or replacement fobs.