Anyone seal one rear cabin vent to maximize space for custom sub enclosure?

[MystichromeVert]

I’m designing a custom enclosure for a small 8” sub behind the rear seat. The passenger side cabin vent extends into the cabin about 0.5 inch. Removing it will net me 0.12 cu ft in the box which is a lot considering how limited the space is back there.

Has anyone tried this? What did you use to seal the opening? Will the driver side cabin vent be enough to balance pressure differences in the cabin?

I could leave the vent in and make the box less deep, but I worry about the box pushing the vent out the back of the cabin. It’s only held in by very small clips. Anyone have experience with this?

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[Wytchdctr]

I am shocked and impressed that someone is putting this much effort into the sound system these days. After watching three friends get their glass broken for a thief to steal a minor system. I never got into it.​

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//Back on topic​

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I don't think blocking one would be a major issue as long as you don't end up blocking both with other stuff later on. I load my rear seat with all sorts of random stuff and I'm sure that crap blocks air flow to those ducts from time to time.

On closing it. Cut out some heavy plastic stock and flex seal it to the body to stop leaks.

End of shitty advice/etc

 

[MystichromeVert]

Using 3/4” MDF, this prototype box is sitting around 0.5 cu ft. It fits snugly behind the seat with the plastic vent still in place. Problem is I don’t think there’s enough room on the face for the sub and trim ring.

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