Well I just got my new car cover and I want to do it right this time and get the hole perfectly lined up. So I'm going to remove the antenna so I can put the cover on and mark the its placement. What's the best way to get it off where I won't scratch the heck out of it trying to get it unscrewed, because I guess I'm a puss, there is no way I can do it with my bare hand. I tried. Suggestions?