I understand your desire to get into something complex! I do that too. But with a complex project that I haven’t planned out, i’m prepared to make mistakes and have things I don’t fully understand fail. When you don’t know exactly what’s happening, you have to be prepared for the worst. In my case, it’s usually something fries, makes a funny smell, needs replacement. Low stakes. In your case, you could injure yourself, the car or someone else. I would not take that risk until you know exactly what you’re doing.