I haven't pulled the frunk out yet. When I first got my car I pulled the covers off of the exterior of the wheel wells and put butyl and sound foam in there. I can post pictures if people want to see.Can you share some pics of where you put it on the front wheel wells?
Looking in the frunk, I couldn't find a place where they were exposed enough like they are in the rear.
I'm going to tackle the frunk side in a few weeks.