hahaha..............
what i do is
open screw at
1) front passenger and driver sunvisor ( after screw out, the other side is a clip, use something sharp and flat or i recommend 2 flat head screw driver to poke in to the small hole that u can see left and right)
2) then screw out the center car dome light ( got 3 screw, gold color)
3) screw from roof handle at 3 passenger side ( front and rear)
4) screw out 4 bolt nuts seat belt at driver, front passenger, rear passenger side (those nuts are cover by a plastic cover, just take it off very easy
5) tear down those rubber(u know which rubber right?), dismantle the front side panel, center panel and rear panel.
6) pull out 2 plastic clips after u took out left and right center seat belt panel
7) pull out 2 plastic clips after took out rear seat belt panel
8) pull out 3 clips on the roof at rear side
9) knock knock the roof, should be fall down if everything has taken out...hah
all is steel screw yea........sorry ler...forgot take pic....