Abstract: A cab and method for assembling such for a machine are described. The cab may define an operator compartment. The cab may comprise a cab frame, a plurality of inner surfaces disposed inside the cab frame, a wiring harness, and a plurality of interfaces accessible through the apertures of the inner surfaces. A portion of the inner surfaces may include a plurality of apertures. The plurality of interfaces may be disposed in Interactive Locations and in Hidden Locations. The plurality of interfaces may include mounting interfaces and connection interfaces. The interfaces may be pre-located. The plurality of mounting interfaces may be configured to receive and position a plurality of Customized Equipment on the inner surfaces. The plurality of connection interfaces may be configured to matingly receive electrical connectors from the Customized Equipment and to operably connect the Customized Equipment to the wiring harness.