I was reading through the manual of my car last night and noticed that it says that it has a compass that appears in the mirror, and gives instructions as to how to activate and calibrate it if it isn't on by default. However, the photos of the mirror are not the frameless mirror that I have that looks similar to what is in the SPA cars. Further, the button on the rear side of the mirror that the instructions state should be pushed with a pen or paperclip to activate the compass doesn't seem to exist on the frameless mirror. Does anyone here have this mirror? does it have a compass? and if so, how do you activate it? I'm speculating that it is part number 31402730, for which I am able to find installation, but not operating instructions.