I just bought my first pair of project cars, (two '76 280Zs and I am PSYCHED about them!! ) and both doors on both cars are locked from the outside, but not the inside. I can climb through the hatch and open the doors fine from the inside, and the lock isn't down inside, but once I exit the car and close the door, it is locked! is this some kind of safety feature? is there a way to undo it? or is something broken/stuck? i haven't tried using the key to unlock it (just thought of that, whoops); would that help? (maybe i should have tried that xD). any help would be appreciated, thanks!!