I don't know how much of the D2 systems were adopted and adapted as a basis for the D3, but if that's the case then the motors are "reversable" by reversing the polarity of the two wires to each.
On the D2 there are four motors for each seat; seat backwards/forwards, seat front edge up and down, seat back recline and seat rear edge up and down.
There is also an air pump for inflating the lumbar support.
The seat heaters, seat and seat back are shown to be wired in series.
The drawing also shows a relay somewhere to power up the whole shootin' match.
As I said, I don't know whether any of the earlier D2 techniques were transfered to the D3, but it might just help.
thks and i think ur spot on with regards to the motors
put a pic of the wiring memory module
so after a swapped all the covers over etc thought , that's the hard bit over, yeh right , lol