Kamei rear spoiler

I guys…. I have a kamei rear spoiler with the four metal clips…. But I cannot figure how this is installed?…… Any tips would really be appreciated.

Does the metal clips push under the glass rubber?

Thanks!

If it's the same as mine yes they do just push up under the seal and hook around the top of the glass. I though it was going to a right pig of a job but it was very easy. Measure where the clips go and think I used a small screwdriver to push the clips in. Half hour of a job.