Stop! Don't cut any wires! Lol. I disabled the seat belt and auto door locks in both our Ram pickup and our old car. It's done by going through a sequence of turning the key on and locking and unlocking the doors and turning off the key. Then the horn will sound to let you know you did it right. Or maybe the doors unlock, I'm not sure. And then I had to do the same thing for the seat belt chime only instead of locking and unlocking the doors it was the seat belts I had to click and unclick. So I would think the Edge would be similar. I sure hope we can do it to our 2013! But I think I found something on the one that we test drove that it could be disabled through the My Ford screens by the speedometer. It should be in the owners manual under seat belts and door locks. I hope this helps.