Coupes all have this spot cut already. In my case, I'm using it as an opening and space to put a sub box. I was missing a few hardware so I couldn't finish it. Probably be done on Friday.
What size are the rivet nuts? Where did you get them? Do they just push in? You got me thinking about putting in my own cargo hooks. Honda's cargo hooks are so expensive.
I still am unsure what you're doing there. A suspended kick woofer. ???
EDIT: you beat me to it. That's a great idea!
It's gonna go all the way up then Ima cover the whole thing with fabric. Riv nuts are more on the expensive side when comparing to nuts and bolts but way way cheaper than cargo hooks from honda.