ive recently bought a corsa c sxi i havent insured it yet as i want a change over from my other car but in the corsa it has a security dead lock thats build in the car and goes round the gear stick ?dont have a clue what the proper name is what i was woundering is how do you prove to the insurance company thats it has one without the recipt do i take it to a garage and get a certifacate or something? any help would be good thanks ..