if you bring the three wire out from under the seat with about 8 inches of wire you can then disconect with out raising the seat.
on page 18.25 of triumph manual number 13 shows an alarm system and the plug that is used before the alarm is installed. this is under the tank if you have this part (a connecter with two wires looped ) or you could put two small jumper wires to 1 to 2 and 3 to 5.
Thanks for your replies guys,got it sorted and back on the road to Denmark .Turbo you were spot on with your diagnosis .Who needs Triumph Techs when we have R3 techs online. Thanks again guys.