"If you are locked out of your car and you have a cellphone, and a friend at home has a cellphone and an electronic entry device, you can have them hold the device to the phone and they can unlock the door from home"

I call BS...

Total BS. Blows my mind anyone believes this shit.

I mean those little beepy things must transmit on a different frequency then a cellphone, PLUS they work by sending a digital code...otherwise those things would be universal...

Thats my take, I know it was retarded, I wish I understood I could debunk it more eloquently.