An accessory system suitable for use in an interior cabin of a vehicle includes an attachment element adhesively attached to an interior surface of a windshield of a vehicle, and an accessory module. The accessory module includes structure adapted to attach to the attachment element. The accessory module encompasses an antenna and a forward facing camera. The forward facing camera has a forward field of view through the windshield of the vehicle and in the direction of forward travel of the vehicle. The accessory system may include an image processor for processing image data captured by the forward facing camera. The forward facing camera may capture images for at least one of a collision avoidance system and an automatic headlamp control system.