sits to the right of the heater controls. Its definitly a oem connector but not connected to anything?
Handbrake warning lamp or heater panel illumination; it's hard to tell the wire colours in your image.
Definatelty handbrake light or heater light. Remember disconnecting it when i removed my dash. Test them and see if they both work first!
Sorry about the pic, the wires are black and grey. Don't think its the heater illumination as thats on the far left. If it is the handbrake warning light where does it plug into? Cheers