Use monafiliment fishing line to "saw" through the factory tape backing your chrome part. Use your thumb or finger to roll off as much adhesive residue as you can.
Then you can use the alcohol to prep for your new parts.
If you are trying to save the chrome parts you are removing--take special care with the DHS name because it crack very easily where the letters are connected.
For a little more custom look, add wreaths and crests to your sail panel(c-pillar) and DHS names to your rear quarters or front doors depending on preference. Most of our dealers like the extra touches, especially when a car is getting gold.