A module support system for a vehicle including exterior paneling defining an interior and exterior of the vehicle, and a frame disposed in the interior of the vehicle, the module support system including a first casting mounted on the frame, where the first casting extends outward from the frame, through the exterior paneling, to the exterior of the vehicle such that the first casting includes an interior portion disposed within the interior of the vehicle and mounted on the frame, and an exterior portion extending outward from the exterior of the vehicle. The module support system includes a first electronic device supported on the exterior portion of the first casting, and a cover fixed with the exterior portion of the first casting such that the cover is disposed over the first electronic device and the exterior portion of the first casting with respect to an external environment.