hello, I believe for the speedometer you have to take the dash from underneath apart by your steering wheel. I changed the part where you tuen on your lights, and the part the has the reset button and tracation that panel and it did take a little time, you may actually have to take some time to do that. It will take a little time you just need the right tools, and you will see the bolts on where you are supposed to open the screws. For the sunroof take off the panel above where your dome lights are and sunglasses area, and you wills ee the motor, and just tos ee if anything unpluged or ripped out, replacing the sunroff motor is easy, just kinda expensive unless you buy it used. And the door panels have little white clips on them in all of the holes that hold a screw in each door panel, if all your panels are loose you will then need to purchase a small white clip for each screw hole that you have, I advise you to go to a salvage yard, depending on how many you need because they can run you like 2-3 bucks a piece and you may need a whole lot of them...