When I asked about subs busting because of cold weather before, people said not to worry about it. Well, I might not, but i had another idea, and I want to know if anyone thinks it would work, or be worth it? They make small heaters for cars that plug into the cigarette lighter. I could use an extension plug cord to run this heater to the trunk, and heat the trunk for a few minutes before running the subs, to make sure they are warmed up. Comments? Oh yeah, one more thing. Has anyone ever tried to take dynamat out of a car? If it can be done, I might do that if I sell the car, just so it stays stock. Thanks for any ideas.