A reflective element assembly for a mirror assembly of a vehicle includes a reflective element substrate and a conductive trace or layer disposed at a rear surface of the reflective element substrate. A non-conductive layer is applied at the conductive layer and covers at least a portion of the conductive layer and leaves at least some portions of the conductive layer exposed. At least one circuitry component is applied to at least one of the portions of the conductive layer. The circuitry component may include a carbon ink resistor printed onto the conductive trace.