that was install instruction step #4 off their website.
here is is more :
Vertical/ Lambo Door Kit Installation Instructions
1. Disconnect the battery
2. Open door completely and remove the door catch that is attached to your inner frame and the door. (do not take doors off)
3. Unbolt and remove front fender completely
4. Using 2” Masking tape, tape door to windshield so that the door does not move at all when you remove stock hinges.
5. Remove stock hinges.
6. Now hold up “Lambo door kit” to vehicle and line up holes. Make sure that the kit will sit flat against vehicle. If not you may have to use a hammer to flatten the inner frame so that the kit sits flat.
7. Extend Wires by cutting original harness and extending wires one at a time. (NOTE: not all cars need this step)
8. Bolt “kit” to inner frame.
9. Bolt “kit” to door securely.
10. Make sure “kit” is securely bolted to inner frame and door.
11. Remove tape from door.
What great instructions!
(If you are really doing this to your car, then good luck. I think it would be neat to see on a SVX.)