When you put your new CAF into the tray, make sure you follow the arrow on the filter as the air is meant to flow through in one direction. The air flow is down. If you forget, the tray has an arrow on it also that says "air flow".
To finish the job, reverse the proceedures above. Slide the tray in, click into place, rotate the glovebox up and let it snap into place, replace the dampener bar, then close the glovebox.
How much does a dealership charge for this job? The last I checked, $120! Can you believe it?! I think they charge so much because most people are too intimidated to do any sort of maintenance themselves. Not to mention, most people are unaware of how easy it is to replace their own CAF, or even know where it is!
I don't recall how much I spent for the CAF, but I think it was about $20 from www.handaaccessories.com
. I generally buy several intervals worth of maintenance items so I can combine the shipping and save even more with their already very low prices.
Good luck with your own DIY maintenance. And, as always, YMMV.