hi my 2001 disco td5 has the key fob that will only unlock or lock the car when i hold it almost touching the roof glass and you have to catch it just right for it to work..if i am inside the truck and point the fob to the rear sunroof it seems to be ok but from outside its a nitemare to operate..any help on this please also i have changed the battery in the fob is there any way of disarming the alarm and flashing lights so i can unlock manually

The receiver from the roof is making tricks...it used to have a bad earth issue due to corrosion or other reasons(see point 2) http://www.landroverclubvi.com/uplo...odule_troubleshooting_and_upgrade8610nasf.pdf

about the the alarm's setting see this http://www.landyzone.co.uk/lz/f8/recommendation-d2-owners-184078.html