Triumph Tiger 800 Heated Seat

Hello Everyone,

I am trying to understand the wiring on the Triumph Tiger 800 Heated Seat. I have managed to acquire one that will fit my 2012 800. However I need to retrofit the wiring to install it.
There a 5 cables on the seat:
Grey
White
Orange
Red
Black
Resistance testing the cables, show a resistance of 5k Ohms Between Orange to Black & Red to Black, so I am assuming (correctly or incorrectly) they are my element feed Com & Earth. All other connections show Open Circuit.
Is there a relay in the seat that the Grey and White cable control?

Any help is appreciated.
Thanks
Mike