Thieves are usually one step ahead of us. Now they have a device that can copy the signal from your key fob. So how do you combat it? Wrap your key fob in aluminum foil. It will weaken the signal (which will require you to get much closer to unlock your car) so the thieves won't be able to record it. My car is 14 years old so I'll be saving my aluminum foil to place at the top of my TV antenna, uh wait, never mind.