JRMichler's mod sounds interesting. Don't forget to
bellmouth the duct ends.
In my case the the vent is in the back of the hood in the center, facing straight up where it collects pine needles.
With an internal fan and flow-through vents it's still a joke. What works is flipping the wind wings clear around so I get a face full of air and bugs at highway speed. Your car obviously isn't so equipped, so Google
[vw] bee-catchers:
Make your own — put them in in the summer and take them out in the winter.