Toad Ai606 giving false alarms and annoying neighbours

[bmm]

My Mk2 fitted with a Toad Ai606 alarm has been giving regular false alarms at night.  During the day it's fine, but as soon as it gets dark and people start to go to sleep it fires up, all indicators a-flashin' and siren going bonkers.

According to the manual that came with the car (only bought it a couple of months ago) the sensor that's setting the alarm off is the 'Doors (-)' one.  Couple of questions are rattling around my head:

1) What the hell does 'Doors (-)' mean?  The doors bit I understand (I'm not that simple ) but what's the negative mean?  I might take out the door plunger bits and just check there's nothing obviously wrong, but I'm an electrical dunce.
2) If I can't see anything obvious, is there a way of disabling that particular sensor?  The car's making me pretty unpopular so I'd like to stop it waking everyone up until I can at least get it checked out by someone who knows what they're doing.

Any help would be amazing, at this point I'm contemplating sleeping outside with key remote in-hand so I can shut it up quicker...

[wampablo]

door - means the neg switch or the "plunger" as you called it is it 5 or 3 door ?checkthem al and even the ones in the boot and bonnet if it has been wired to the same curcuit

[bmm]

It's a three door, so that narrows down the possible offenders.  Ta for the advice, I'll go round and check the wiring on each and see what's up.  Hopefully I don't have to take it to a garage to get sorted!

[troublestarter]

how many times does it bep when you arm it
it should only beep once upon arming
any more than that then there is a fault with a door bot or bonnet pin
to find out which one disarm the alarm then with a door open press the appropriate door pin in and hold in then arm the alarm if it beeps once its not that one
try this all round the car until you find one that causes the alarm to beep more than once and that will be it
also does the car have a long delay before the interior light goes off

[bmm]

Aha, brilliant!  I finally got the chance to look at it yesterday, and the boot switch was the culprit - no idea what had happened but there was no plunger anymore, just a hole and a spring, and it must've been shorting out the contacts or something.  Sorted that out and no more false alarms.  Not sure why it's wired into the door circuit, but whatever, it's fixed now.

Blissful sleep!  Thanks for the help!

[troublestarter]

its not wired to the door circuit it has its own trigger but it will still be named a door trigger