By Bob
What the white spot is the old adhesive. There are tools on the market to remove decals without harming the paint Provided the paint has a clear coat urethane finish. The tools available at auto stores may be too expensive for a one time use so maybe the best thought is to visit a body shop and for a few bucks they may be able to remove the old adhesive with one of the tools. The tool is a special abrasive wheel that runs on a electric drill. The wheel does not harm clear coats. If you have regular paint the wheel will remove the paint.
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