CADA AMG GT3 Help

I know this is a Lego forum so hopefully the purists don’t crucify me lol. First let me say that this is not my first 1/8th scale technic car, I have the Daytona sp3 and I loved the build process. This cada build is 100% more complicated, in depth, and intricate than the sp3 so I’ve been trying to take it slow but I’ve already missed a couple small things. The issue I’m having currently is that at the end of the first stage you attach some technic pins to the gearbox. Essentially the input...