Installing Terios Spoiler



I need help on how to install roof spoiler for Terios.

Mine has not been installed yet. As such, there is no holes on the roof.

I know I have to drill holes, but I want to know the EXACT location of the holes and how big I should drill.

Is there a manual somewhere where I can refer to or can someone please give me the coordinates? A simple diagram would certainly help.

Thank you.