Starting system/Ignition switch
Recently bought a Ford Focus. The previous owner put a 100A fuse in the Ignition switch fuse spot. I did some research and found out it should only be a 30A fuse. I went and bought the correct one. I put it in and went to start the car and it instantly blew. I just need to know what damage the 100A could have done to make this happen and how to fix it. This is my first car and I know nothing about this stuff!