I didn't wire it on the gauge cluster, but somewhat to an indicator light-weight bar like shown under (once again briefly). I wired in the ignition to + of the light, then calculated five.45V when grounded to chassis. I am not Great at conveying this similar to this clearly, but https://deanbatkb.tblogz.com/the-2-minute-rule-for-toyota-4age-engine-for-sale-46292225