installing screen under Duster's air vent

After cleaning mine out (water and coat hanger years ago) I went to an arts store and bought a roll of flexable sheet magnet and cut it to size with scissors. I leave that on there most of the time (except when its very hot out) even when driving. Keeps the leaves and crap out added benefit its almost water tight for the most part.

I painted it body colour but because its flexable the paint on it will crack.