It is behind the glove box. You need to remove the glove box to get to the cover to get at it. Some vans do not have one though.
Here is a guide to help you see what you are in for and a diagram below to see what it will be like on your car.
https://www.2carpros.com/articles/how-to-change-an-air-cabin-filter
Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
Cheers
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Wednesday, August 10th, 2011 AT 9:05 PM