w124 memory seat switch
 

Does anyone know if a memory seat switch can be added to a non-memory passenger side? Is the wiring already present and just require changing the switch type? My 87 has 1-2 memory on drivers side and non memory on passenger side. Can this be done?

Any ideas?

I was wondering the same thing about my non-memory driver's side seat.

I wanted to add this to my 1993 W124, but was informed that as well as replacing the module in the door, there was an additional set of wiring and another control module under the seat which you'd need to add also.

As to the wiring
 

Thanks for the info so far, does anyone know whether the wiring is already present in the harness? My diagrams seem to indicate this, I guess it would make sense to have the wiring present and then add the control module and switch.

Any more thoughts always appreciated,