Protecting Your Speakers
Sound systems are quite pricey so when you buy yourself some speakers and a sub woofer, you want to make sure that you protect them. You can do this by lightly spraying the rubber surrounds to prevent them from cracking.
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Protecting Your Car Doors
Similar to the rubber bits on your speakers, you can spray the rubber frames of your car doors. This will prevent them from craking, extend their lifespan and stop them from allowing water from seeping in.