Does anyone know if there is supposed to be a plug that fills the oval opening inside of the frame? I tried searching for it but was unable to find anything about that opening. I also tried looking up the parts diagram and even went to the dealership but did not come up with anything either. I am dealing with water leaking into the trunk and thought that this may be one of the causes.

Thanks,
Paul

 

Numero 7 (74901-SH3-A00)
https://www.buyhondapartsnow.com/aut...alve-duct-scat