9 Electronic device that verifies the signal of an antenna; remote control device to double the door signal; electronic device that measures the voltage on the vehicle data line; voltage regulators for vehicles; engine sensors; exhaust system sensors (temperature, pressure and flow), being part of internal combustion engines; resistances, electric; coils, electric; holders for electric coils; connectors; apparatus and instruments for conduction, distribution, transformation, accumulation, regulation or control of electricity; couplings, electric; regulating apparatus, electric; measuring devices, electric; electrical regulation devices; choking coils; coils, electric; electromagnetic coils; speaking tubes; wire connectors; terminals