Originally Posted by Smoky
As mentioned above the prelim step is to remove the interior headliner/roof material. Then the bolts are exposed. Not sure if that answers your question or if I misunderstood.
It was me who mentioned to remove the roof liner but I'm wondering why it's not mentioned in the workshop manual. So it seems like there is a way to do it without removing the roof liner. That is why I need clear answer from somebody who removed the spoiler before because removing the roof liner is much work. I would be happy if I could avoid this step.