Hybrid door module

A carrier for a motor vehicle door assembly, the motor vehicle door assembly having inner and outer panels defining a door panel structure with the inner panel having an opening for selective access to an internal door cavity containing window and door latch components between the inner and outer panels, said carrier, comprising:

• a wall bounded by an outer periphery sized to close off the opening in the inner panel, wherein the wall is provided having a varying wall thickness, with generally planar regions having a second thickness configured to extend generally parallel with the inner panel, and channels having sidewalls, laterally spaced from one another, having a first thickness extending outwardly from the generally planar regions to generally planar plateau regions having said second thickness, wherein the second thickness is less than the first thickness, wherein said generally planar regions include localized regions having a third thickness for supporting a hardware component, said third thickness being greater than said second thickness.