I just bought a 2002 F250 truck. It came with what I think is RFID key fob security. I have to have the little plain black "thingy" with my ignition key to start the engine. There is also about a 2"x3" rectangle box with a little antenna coming out of each side attached to the inside of the windshield beneath the review mirror that I think has something to do with it. There is also a little red light that blinks on the left side of the dash. It has a red & black wire coming from the back of it, but I can't trace where it goes. Can anyone tell me how to get rid of this thing and disable it? Please help.