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  1. Question for those that have sound deadened doors

    2010-2013 Mazda 3 & Skyactiv Audio & Electronics
    Did you guys remove those big foam blocks inside the door and leave them out or did you put them back in after adding deadening material? I'm adding fatmat to my doors and I just put one back together then realized that I forgot to put those foam blocks back in but I don't really see what...
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