An accessory system for a vehicle includes an accessory disposed at and behind a windshield of the vehicle and a control having digital circuitry and a microcontroller. The accessory includes a forward facing camera that views through the windshield. The microcontroller may control at least one of (i) the forward facing camera, (ii) an actuator of the vehicle, (iii) a garage door opener of the vehicle, (iv) an electro-optic rearview mirror assembly of the vehicle, (v) a digital sound processor of the vehicle, (vi) a display of the vehicle and (vii) lighting of the vehicle. The control is operable to at least one of send data to and receive data from at least one other accessory or system of the vehicle via a vehicle network of the vehicle.