Did this project to wrap my roof last weekend.
One thing I can add to the YouTube tutorials that have been listed in this thread is re: the c pillars trim removal.
I discovered a way to remove this that does not involve slamming in the 'green clips' described as airbag clips.
I first started removing/popping out the c pillar trim from the c pillar trim near the headliner near the top of the rear glass and work your way backward towards the rear most pointy end adjacent to the rear glass using some trim removal tools (the large hook ones worked well). once these tabs are popped out, and the door weatherstrip is removed, the c pillar trim can be wiggled towards the front of the car to unhinge the green clip from the trim piece essentially loosening and removing the trim piece . As you're wiggling this trim towards the front of the car you can visualize this through the gap where the weatherstrip used to me.