A seat module adapted to be attached to a seat having mechanical parts and electric devices for seat operation in a motor vehicle includes at least one operating cable for activating at least one device, and a cushion suspension module adapted to support a cushion of the seat having a plurality of cushion suspension wires for attaching to the seat and at least one module plates coupled with the cushion suspension wires. An end portion of the operating cable is temporarily stowed on the cushion suspension module in a pre-assembled state where the operating cable is attached to the cushion suspension module, and the end portion of the operating cable is connected to the electric devices and/or mechanical parts of the seat in an assembled state where the cushion suspension module with the attached operating cables is securely mounted to the seat.