Cut some foam, 6 cuts to be exact and a lot of time just looking.
What foam did you use for the bulk head? I’m needing some after replacing the brittle rover one but it’s a mine field of which one is right for the job
Don't use foam, it's not a sound proofer.
Use MLV mass loaded vinyl, it's what the big boys use. (Jag, BM, MERC)