this might be a dumb question, but how can I center my rearview mirror? with all the sunroof problems i have had lately, my rearview mirror fell off. So in the process of trying clean off the old adhesive i realized that i left no marker for where it was exactly before. Is there a easy way to center it? because once you mount it, id imagine it would be difficult to remove again...

Either take a measurement of windshield total lenght and divide by 1/2 or find another car that is similar and take measurements.