I also pulled the black box that's behind the filter housing. Nothing I looked at told me to do that, but I couldn't get the filter out with those wires in the way.
Also, the retaining clip for the interior piece that covers the passenger side got removed my me, which allowed much greater access.
I guess there would have been a way to do it leaving those things alone, but in 40ish weather outside at 9.30, I wanted to get it over with as easily as possible.
I do have better air movment now though.