This is a bad idea in all, an its against the law to do this, now if you do it, then she gets into a wreck an get hurt really bad, then your insurance is going to wonder why it didnt go off, an then find out you did it, an they will not insurard anything, nor help your wife, insurance wise, I say you or someone else, drives her around, I bought my wife a Car that didnt have Air bags, Just for that reason, then sold it after words,, my 0.02 cents,though