Today was windy, and a strong wind gust blew
a pile of dust on my feet, wtf???
I guess theres some major holes in the firewall
or something. Anyone else experienced this?

So much for having a cabin filter, when you get all
that dust from underneath the dash...

 

I've also noticed sand in the spare tire well. Hardly any sand around here so it must be from gravel roads. Must be some kind of vacuum swirl at the back end.

I also noticed a small flag I have tucked into the hatch brake light got wet from spraying wash soap off the car. It must be getting through the closed hatch seal at the top.

 

Yes, read your owners manual.
Its behind the glove compartment.
Unlike some toyotas, our fits come
with a filter installed, not an emtpy filter holder.
You can also get different types of filters.
I got the charcoal infused filter, to absorb
odors.

 

Are you buying size specific filters or are they simply pre-made for our cars?

 

Here is the honda part number for the charcoal filter "80291-s84-a01"