This is under the passenger seat next to the floor vent. Trust me, you can see through to the ground (hard to get a good pic). So, only the carpet and whatever is running past in the undercarriage is keeping elements out. By the shape it’s obviously supposed to be there, but what is it and should there be a plug/grommet? I’m thinking of using soundproofing material to cover it. I felt around under the driver side and there does seem to be a plug/grommet of some sort, but I couldn’t pull the carpet up enough to see. Appreciate any insights. Thanks.
