Well, this is already what I did with my unit but OK naman yung pag backing ko since naka light tint yung rear windshield.
Will definitely follow same tint shade application once its time na to replace this tint.
Sinusulit ko lang muna yung free ng CASA since OK pa naman.

So far, yung side mirror lang talaga diko makita sa gabi if walang light sa likod when backing out.