A lightweight automotive electronic device comprising: at least one electronic circuit component including a circuit board; wherein the circuit board is a substantially planer circuit board defining front, rear and an opposed pair of side edges (1588, 1590), said electronic circuit component further including electrical components and circuit traces operatively carried with said printed circuit board; a housing assembly (1512, 1514) substantially formed of a composite of relatively rigid polymer based material and electrically conductive material operable to substantially enclose and to shield said at least one electronic circuit component from electrical anomalies, wherein the polymer base material is a composite of relatively rigid, electrically insulating polymer based material and the electrically conductive material is electrically conductive sheet-like material, and the electrical anomalies include RFI radio frequency interference, EMI electromagnetic interference, BCI bulk current injection and/or ESD electrostatic discharge, characterized in that the circuit board has an integrally formed resilient beam portion (1552, 1594) adjacent an edge (1546, 1588, 1590) thereof carrying a grounding pad (1558, 1600); and in that an inwardly facing exposed portion of said conductive material of said housing assembly (1512, 1514) is disposed adjacent said grounding pad (1558, 1600) to establish an electrical ground path therebetween; wherein said housing assembly (1512, 1514) includes at least one window formed therein, said window substantially closed by the inwardly exposed segment of said conductive material operative to effect the electrical interconnection between said conductive material and said grounding pad (1558, 1600); and wherein said resiliant beam portion (1552, 1594) carries an outwardly facing grounding pad (1558, 1600) electrically interconnected with said electrical components and circuit traces through a ground circuit trace dressed, at least in part, along the beam portion (1552, 1594). at least one electronic circuit component including a circuit board; wherein the circuit board is a substantially planer circuit board defining front, rear and an opposed pair of side edges (1588, 1590), said electronic circuit component further including electrical components and circuit traces operatively carried with said printed circuit board; a housing assembly (1512, 1514) substantially formed of a composite of relatively rigid polymer based material and electrically conductive material operable to substantially enclose and to shield said at least one electronic circuit component from electrical anomalies, wherein the polymer base material is a composite of relatively rigid, electrically insulating polymer based material and the electrically conductive material is electrically conductive sheet-like material, and the electrical anomalies include RFI radio frequency interference, EMI electromagnetic interference, BCI bulk current injection and/or ESD electrostatic discharge, characterized in that the circuit board has an integrally formed resilient beam portion (1552, 1594) adjacent an edge (1546, 1588, 1590) thereof carrying a grounding pad (1558, 1600); and in that an inwardly facing exposed portion of said conductive material of said housing assembly (1512, 1514) is disposed adjacent said grounding pad (1558, 1600) to establish an electrical ground path therebetween; wherein said housing assembly (1512, 1514) includes at least one window formed therein, said window substantially closed by the inwardly exposed segment of said conductive material operative to effect the electrical interconnection between said conductive material and said grounding pad (1558, 1600); and wherein said resiliant beam portion (1552, 1594) carries an outwardly facing grounding pad (1558, 1600) electrically interconnected with said electrical components and circuit traces through a ground circuit trace dressed, at least in part, along the beam portion (1552, 1594).