Hi - I was also wondering about applying adhesive mount to the plastic (I think it is) sunshade that comes on your interior windshield - our Kia Souls have a generous amount of this on the glass behind the rear view mirror (where it would be perfect to mount a dash cam I think). I don't think suction cup would work on that sunshade material on the glass...and I'm concerned about mounting adhesive mount on that sunshade material - would it damage it when removed...?? Or if you used a string to "saw" it off like on Youtube, and some Goo GOne - would it clean up OK and not damage that sunshade material already on the glass.... Thank you.