Zenmuse h3-3d on dji phantom vision+?

I bought a vision plus of eBay with no gimbal. Then I bought a Zenmuse h3-3d, but now I don't know how to install it. I saw someone that had it installed on YouTube, but they didn't share how they did it. So does anyone know how to install it on the vison+ or even another gimbal that might work… (I have a GoPro hero 3)

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