Please don't use a razor blade on your back window. If you cut one of the lines it can mess up your rear defrost. Let the tint shop do it before they retint. I paid 130 to have mine tinted 20% with a lifetime guarantee as long as I own the car. If I don't use cheap cleaner and turn them purple, the tint shop will replace tint if it ever bubbled. Had it on 3 years with no problems. It's worth letting the professionals do it! Find a guarantee on the tint and the work!
Maybe take out the rear deck so it's tinted over the third light too!
![]()