2014 C7 - Removal Roof front bracket adjustment
 

I need to adjust downward the left front roof bracket just behind my driver's side sun visor (2 10mm bolts), to solve a wind noise issue with my removal hardtop.

In order to do so, I need to remove the front headliner, at least the left side portion, in order to access the 2 bolts. It seems to be held on by clips, but when I tugged at it, it barely budged. I have the micro fiber suede option, but that shouldn't matter.

Does anyone have instructions and/or diagrams/photos of how to remove this item?

Thanks