Hmmm... If it is a very sensitive area with seals and stuff, and the glue is dry, you are in a bit of trouble.
Personally, I'd peel and orange, and rub the peel vigorously around on it to see if it starts to lift it up a bit.
The next step would be to find a citrus solvent. Find an old windshield wiper blade insert and see if it melts it, pour on styrofoam etc. and see if it melts it, read reviews on the stuff etc.
I had to remove dry duct tape off a sliding door at an apartment once, and that stuff was like concrete. An orange cleaner took it off, it was great stuff but I can't remember the name.
Don't use Goof Off or anything like that, too powerful. Xylene is bad news on anything automotive.
Maybe a Citrus engine cleaner on a small rag?