I have had a 6 1/ 2 system, sitting around the house, i just put it in my car, and it has been in there for about 2 weeks, i noticed the sound quality greater has decreased, i opened the trunk to see what was up and there it was a big dent in the magnet cover, from the bar that is on the trunk, so this is kinda a heads up make sure your magnet clears the trunk bar, cause it really messed up my close to $500 compenant system up, whic now is nothing but a tweeter and a crossover,