Thieves allegedly watch someone arrive and, once that person is out of the vehicle, press their remote and hold it down. When the owner attempts to lock their car, the signal is jammed and the car remains unlocked, with the owner just going off doing their shopping to come back and notice a stolen radio or even worse – an empty parking space. People should take extra caution when exiting their vehicles as theft with no sign of forcible entry is often found by top insurers in South Africa. Sure, with the newer vehicles, the remotes have encoded signals etc. but that does not stop thieves from blocking out the signal to the car. That can be done and any electronics genius will tell you that.