I took a used OEM read spoiler down to my body shop today, along with my non-spoiler'd FD. The guys at the shop said that the lift gate/hatch on the factory spoiler equipped models would have had various holes/cutouts for the spoiler to clip and then bold in. Makes sense. In helping to stay consistent/avoid any fitment issues, would somebody mind posting a couple pics of the spoiler mounting hardware on the underside of their hatch? Something like this...

 

Here's the Mazda instructions for installing Rear Spoiler Install that page also has the templates used

 

Holy *****, that's awesome! Thank you!