Can I install a metal piece from a magnetic car dock internally?

I have an odd question. I intend to buy magnetic car dock for my iPhone similar to the one pictured. It requires you to either place the rectangular metal sheet between the case and the iPhone or it glued to the back of the iPhone. I don't have a case and I don't want to glue the metal piece to my phone which looks a bit unsightly.

Is it possible, if its thin enough, to have this placed internally in my iPhone? If so, is it possible to get an iPhone technician to do this for me, as I don't have the tools or the know-how to open the phone.