2012 T4 Fit electric seats

[PG38]

Hi 

First post after browsing forum for some time as an Avensis owner. I have recently bought a 2012 T4 after having an early 2009 T25 T spirit. I knew the T4 did not have electric seats when i bought it. Now however we are really missing this. I have read that front electric seats were an option on this model and looking under the manual seats there is a block of connectors under each (the drivers seat does have electric lumber support). Does anyone know if front electric seats from a donor car can be fitted to mine using these connectors or is it not just as easy as that. There are no blanks for the heated seat switched on the front below the ashtray so i take it that function would not be doable even if the seats did work. Any advice and/or experience of this would be a great help in deciding to pursue this or not.