I heard many good things about these things. For those who don't know what this is, it is a thin material that you stick to any surface behind the actual speaker, making the sound actually better. Well that is at least what I hear. Anyway, I have installed my speakers in the front doors quite a while ago so my memory of the insides of the door is a little vague. I remember there was a hole in the metal panel inside the doors for the speakers. The sound deadener goes behind the speakers but I don't remember if there was another metal panel behind the speaker or the actual window when it is down. Anyone know?
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