https://caraudioadvice.com/car-audio-installation-mistakes-2/ Helping you with your car audio questions. Wed, 13 Apr 2022 16:34:39 +0000 hourly 1 https://caraudioadvice.com/car-audio-installation-mistakes-2/#comment-14397 Wed, 13 Apr 2022 16:34:39 +0000 https://caraudioadvice.com/?p=7201#comment-14397 For the rings around the speaker, you should use Closed Cell Foam, not open cell as you mentioned above. But good article overall!!

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