2014 UK RHD CVT S/S

After reading through the various threads regarding heated seats, I can confirm that I do have the connector near the FAST bit above the gear selector (CVT)
Under both seats, there is a loose connector - with three wires (Red, Black, Green on drivers side)
There is also a two wire connector, that's connected (Blue/Black on drivers side)

Does this mean that I have heated seats connected, and just need to add a switch ? Because the other threads imply it's a two-wire connector I'm looking for.

Anyone got any wiring diagrams for the switch, so I can find an alternative, or at least test before buying, as £80 for a £5 switch seems very expensive.