1. A vehicular accessory system, said vehicular accessory system comprising: an attachment element attached at an interior surface of a windshield of a vehicle; an accessory assembly comprising a housing, wherein said housing accommodates an accessory element; wherein said accessory assembly comprises structure used in attaching said accessory assembly to said attachment element; wherein said accessory assembly includes circuitry disposed in said housing, and wherein at least two electrical accessories of said accessory assembly share at least one component of said circuitry; wherein one of said at least two electrical accessories comprises a video camera and another of said at least two electrical accessories is selected from the group consisting of (i) a headlamp controller, (ii) a remote keyless entry receiver, (iii) a cellular phone and (iv) a vehicle status indicator; and wherein said video camera, when said accessory assembly is normally mounted in the vehicle, has a field of view through the windshield of the vehicle.