Grant horn button help!

I watched the OP video again. It appears the stuff Grant sent you is a COMPLETE Grant adapter. All those pieces MINUS your fancy Billet adapter go together. Not clear to me that your wheel would fit the Grant parts

Is your Billet adapter made by Grant? If not, nothing Grand does is going to fit. What is the brand and part no. of the billet adapter? Horn button for the Billet?

Yes everything you see in the video are ALL GRANT PRODUCTS. That's why I showed the boxes that all the parts came in with their respective part number. 5196-1 billet adapter, 5870 billet horn button kit, 3196 horn kit (which is wrong but they claim it's right). The only part that isn't a Grant part is the IDIDIT column. That's why I can't figure out why their own parts don't work with each other. I've looked at all their instructions and none of them make sense for my installation. But I'm an idiot. What do I know.