I hope you are not referring to the stripe on the side near the bottom of the door panel. I had a blue tape on my crossfire when the dealer sold it to me.
I did not notice it at first but after the dealer sold me the cross he said that the stripe was tape and he could not take it off. So I had to get the car back.
He scraped the tape off and painted the bottle of the door panel (near the crossfire silver plate). I am glad he fixed it.