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We didn't leave the wiring this way, but we wanted to show you how all the extra harness length was nicely gathered and zip-tied together. Note the small red box, which is the signal conditioner for the wide-band oxygen sensor. The entire bundle was then snugged under the dash and tied up. Note the USB cable on the floor. We're leaving this under the floor mat in case we want to reset the air/fuel ratio targets for the self-programming function.