Ah, now im with you, I didnt think my car had any physical locks as i have never had to use them, i can only assume they are now hidden under part of the door handleI don't think that should be an issue. The keys can be coded to the car and the physical locks changed. The RF part will only activate the actuator on the lock surely, so the lock wouldn't need to be coded to the key. Unless the actuator has its own decoder but I doubt it.