KZN 185 spoiler

[sid1]

I have just bought a standard 3rd gen spoiler to replace the fancy electric mirror type spoiler which is currently on my wagon. can anyone tell how the standard (non mirror ) one is attached. I havent recieved it yet so perhaps it will be obvious when it arrives but from pics it looked like its stuck on ????

[BUSHWHACKER]

It's bolted on from the inside.