when i arm the alarm, i get 4 chirps then the alarm goes off straight away.i checked the amount of led flashes and it's 5, which in the manual says trunk open/ajar, but the boot is very firmly closed. dodgy sensor perhaps
yeah, check the sensors,
my bonnet sensor was all rusty and one day just broke into about 5 little peices.
seemed worse when it had rained and i think it was because the switch was shorting with the rain as it is right at the front of the bonnet.
when I was fitting the new one i tried it with the bonnet up, did 4 chirps, then wioth the bonnet down with the new switch, was fine, go the three chirps!
I reckon its prob the bonnet one as the dorrs are enclosed and dont get wet.