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I need help troubleshooting a problem with a JBL GT-basspro12, works fine when car is running but when I turn the car off it doesn't power off : r/subwoofer
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Amazon.com: JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black : Electronics
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$37/mo - Finance JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black | Buy Now, Pay Later
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