Mystery plastic box behind door panels?

  1. jiantan1

    jiantan1 New Member

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    #1 jiantan1, Sep 22, 2019
    Last edited: Oct 15, 2019
    I was installing Noico and noticed this plastic box in the door panel. It seems to have no function. First cynical thought was that it was a resonance box purposely installed to increase door/wind noise to make the civic worse than say, the accord. The hopeful thought was that it somehow tunes the speaker to the left of it in the picture. I'm doubtful since it's plastic. I have half a mind to rip it off but am wary that it serves some odd purpose. No wires go in or out of it. There is nothing inside. Any ideas?
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  2. Drake

    Drake Senior Member

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    Maybe just an additional buffer to keep the two panels from caving into each other? Is there one inside all the doors?
     
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  3. OP
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    jiantan1

    jiantan1 New Member

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    The picture is representative of the front two doors. I forgot to really notice the rear doors though. That's possible though it's in the structurally stiffest part of the panel, the corner between two walls.
     
  4. brienp

    brienp Senior Member

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    Its your automatic check-in box for the Area 51 event. Just drive thru the gates of A51, it will check you in with the military.
     
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  5. Axatax

    Axatax Senior Member

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    It's a structural piece to add rigidity to the panel.
     
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  6. Homer2556

    Homer2556 Member

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    I'm thinking @Drake has the right idea. That's usually where people push on the door with their foot to open it. Would minimize cracking of the panel.
     
  7. TypeSiR

    TypeSiR Senior Member

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    Mystery box :) it’s a place to hide stuff :)
     
  8. Axatax

    Axatax Senior Member

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    If someone tried to open my door like that, I'd break their legs.
     
  9. crxFITcivicBOY

    crxFITcivicBOY Senior Member

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    Don’t rip it off. I don’t work for Honda, but I do work for another OEM. I don’t know what that part does, but the trim on the door is actually part of the crash safety system in a car. It could be a small spacer to provide energy absorption in the event of a crash. You’d be surprised how small things can have a benefit in the event of an impact. If you don’t need it off, leave it alone lol.
     
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  10. Civics4Ever

    Civics4Ever Rally Red EXT

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    You put your weed in there before you cross the border.:D
     
  11. OP
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    jiantan1

    jiantan1 New Member

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    Reading that makes me glad I didn't pull it off.
     
  12. 69L46Vert

    69L46Vert Senior Member

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    I have an 03 Civic and it has the same thing in the doors.
     
  13. PEPSIFLAME

    PEPSIFLAME Senior Member

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    Why would you have pulled it off anyway? With things like that, if they put it there, it's for a reason.
     
  14. OP
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    jiantan1

    jiantan1 New Member

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    Only if people here reinforced the idea that it's to increase road noise. I find its design a little suspicious. It's attached to the panel with 3 plastic welds. But oddly, there is this spot lifted from the panel which would cause vibrations. Honda knew this and inserted a block of foam to dampen it (you can barely make out the foam in the photo) but I suspect it will still resonate a little. Id be curious to see what an accord panel looks like.
     
  15. civicls

    civicls Senior Member

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    Engineers aren't that bored to place plastic boxes in door panels, each of these parts have a function, and that little box certainly does too.

    I hope you were joking about the resonance thing :hmm::rofl:
     
  16. CivicXI

    CivicXI Senior Member

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    Anyone have one of those diagram thingies with the exploded view with the part numbers?
     
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