Molex Unveils Major Sensor Innovations in Automotive Active Noise Cancellation Molex, a leading global connectivity and electronics solutions provider, introduced an accelerometer-based Road Noise Cancelling (RNC) sensor, the first product in a new family of automotive Active Noise Cancellation (ANC) sensors. These sensors will play a critical role in combatting unwanted road, wind and HVAC car noise while reducing low-frequency sounds that increase driver fatigue. Advancements in the electronics industry have enabled ANC technology, more commonly associated with high-end headphones, to transform how car manufacturers address road-based noises. Instead of installing expensive and heavy sound-absorbing materials to insulate car interiors from excessive road noise, ANC sensors are designed to be installed on a car's chassis for more accurate and efficient results. Devices mounted to wheel wells and car frames, however, must be built to withstand the harshest conditions.