I want you to go out to your car and think that one through.
Then, I want you to come back to your computer, search for "door lock conversions", and
READ on
www.zilvia.net .
If you still can't figure it out after that, I want you to sell your car and get a Corolla. They never break down.
P.S. - If you don't want to do that, then tell us and we'll baby-step you to complete automotive knowledge.