Rear Wind Deflector Removal

[weldguy]

How the heck do I get the rear window air deflector off?
I know there are for nuts to remove. I found the rear two under the plastic trim, but can't find access to the other two. I pulled the headliner down, but don't see any way to get to the other two nuts. What am I missing???

Sorry... it's a 2000.

New guy