Here you can see how i made an input connector for a Handbrake on my Thrustmaster TX Wheel Base.
I use a Fanatec ClubSport Handbrake (with Digital Output MOD)
How i gave my Fanatec Handbrake a digital output, You can see at my other videos: Sim Racing DIY Project & Digital Output MOD - Fanatec Handbrake
It works fantastic and it gives so much fun in my sim/race games i play on my Xbox: Assetto Corsa, Dirt Rally, Dirt 4, Forza Motorsport 6/7 and Horizon 3, Project Cars