When I bought my new 06 last month, the previous owner had a keypad entry installed on the drivers door.
I had always thought it looked out of place and stood out on a white car, so I decided to remove it. I knew it would be a PITA, but I heated the area with a hair dryer and worked the 3M tape off.
What I didnt anticipate was that dirt and grime and sand and god only knows what else had taken up residence behind that sucker and embeded itself in the paint.
So I whipped out the ol' clay bar and 30 seconds later....WOW! Can't even tell anything was ever stuck on there.
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I heart clay bar - 
