computer circuit board with wires, components on gray surface. red, black, white wires, car wheel in background, electronic

circuit board electronic device wiring connect spark axle hub tire rim battery ignition engine alloy brake cable coil light switch sensor relay alternator regulator connector fuse harness distributor capacitor voltage solenoid transistor ammeter resistor wire component componentry electronics electrical system car vehicle automotive wheel hubcap wheelwell block cylinder head piston crankshaft