Reattaching microphone on iMac 21.5" 2017

After reassembling a 21.5" 2017 Retina iMac (and being careful that the adhesive strips on the bottom don’t block the mic), I noticed the microphone was extremely muffled.

The delicate mic cable was a little bent, so I decided to order a new one. Unfortunately, the iFixit tutorial for the 21" iMac microphone is missing and the teardown isn’t that specific when it comes to the mic.

I did find this photo of it on their site. But I’m not sure of a few things:

• The orientation of the mic (is it supposed to fold and wrap around the lower support chin strap bracket?)
• Is the gold part supposed to touch the aluminum of the iMac chassis?
• How to adhere it to the aluminum?
• How does the sound even get through this thing if there’s a piece of glass in front of it, and adhesive on either side of the glass?