I made this to replace the factory wire “filter” because I got some leaves and other tree parts in my fan after 20 years.
You need to remove the factory piece to install this and probably clean its remnants with a dremel. (The wire is spot welded to the inlet in 4 places, easy to snip off to begin with)
Needs a filter material, some M3 screws and tapping for the screws.
For installing you should remove the wipers and plastic covers under the windshield.
The housing body has a groove on the bottom that should fit over the inlet. I put some silicone in that groove before pushing it on the sheet metal.
Made it for my NB (2nd gen) but might fit NA (1st gen) as well
The author marked this model as their own original creation.