W126 Power seat switch question

[donbryce]

1985 380SE, passenger side seat switch without memory. Can the same or close model/year passenger side switch with memory be used? I know, or think I know, that the memory function requires an additional module under the seat, but I would like to know if the non-memory wiring will/can be mated to one of these. Also, if they can be married up, can I remove the memory buttons so the non-memory escutheon plate can be re-used? I have found more memory replacement switches than non, so would like to know if they can be interchanged.