Thank you the reply, the alarm is armed when I lock the car with the key to. It arms after a certain period of time (not sure how long it is as Ive not timed it - not to long though). Therefore the unlocking with the key still sets the alarm off, not a major hardship as starting the car does disable the alarm but not ideal in a quiet street at night :). I will have to contact Nissan and see how much a second keyfob is going to cost me, any ideas?
All the best. Michael.