How do I repair a broken tailgate latch on a 2003 Sienna when I can't open the door from the outside or the inside?

I hyave a 2000 Toyota Sienna CE. When the first time this happened to me I took it to the dealer and got a charged a whopping $300 (includes part). So when the part broke again, I decided to do it myself. From the inside of the vehicle, carefully remove the plastic panels. Do this carefully as not to break the plastic fasteners. After this, locate the broken part. From the inside you can open the door now by operating the door mechanism. Once you open the tailgate, remove the part and replace. It's better to remove the part first then take it to your dealer as not to make a mistake and get the wrong part. After replacing the part, just work backwards to install everything. Note: Be sure to take photos of the part before taking it off, so if you forget you can refer to the photos.