Toyota Yaris DIY

Sorry i didnt get the Red tach wire pic, but i just input it into the ACC fuse under the driverside dash. This way when the key is turned on and car started, the tach will also come to life. Its in slot #24 in the fuse box housing and is a 7.5 amp fuse. This will power the tach at 12v. I just put the wire right to the fuse, i choose to do this cause i didn’t know where else to put it. Im sure you could hook it up more properly on some wire somewhere nearby.