So, nearly a year gone by already and I still haven't got round to doing this!
Have to say though that the stuff online about using the Nanocom gear suggests it has to be plugged into the car, I presume via the diag port, but the vids I've seen seem to relate to fobs which work the central locking. Mine looks the same but doesn't do the c/locking as there isn't any (!!), it just sets the alarm. I need to make it so it allows the thing to start! Does the nanocom gadget cover that too?