Getting a +12v out when alarm sounds?

Hi

I've searched on the net to no avail so thought i'd post here, also asked the guys who installed me alarm, they don't know either, but I know it can be done.

I'm trying to get a +12v constant when the alarm is triggered. I have a UK spec Clifford Concept 500 w / remote start. I believe this to be the correct wiring diagram http://www.clifford.com/guides/wiring/concept50x_wiring.pdf but this could also be it, don't think so though http://www.clifford.com/guides/wiring/concept50_wiring.pdf

I'm guessing to get a 12v constant I'd have to wire in parallel to the yellow siren wire, but i'm not too hot on hacking up my alarm just to see if i was right :)

Any help would be appreciated

ps. If anyone wants to know what it's for, it's to trigger a relay to a homemade pager device i've made.

Tried it, didn't work, both sides of the red power wire were positive, instead of only one being positive.

Think it's because my siren has a battery backup when the power is cut to it.

Any other ideas? Also, the wiring diagrams i posted up there are wrong :(

Doesn't work :(

As soon as I connect the ground, the relay turns on, no matter if the alarm is on,off, sounding or in valet mode.

Any more ideas?

two red wires?  from the clifford diagram there is suppose to be a yellow wire that provides a ground to trip the siren.  what you could do also is use the parking light flash to trigger your pager.  you should have a positive trigger input on the module.  if you don't, you will have to install a latching relay to make it work.

https://www.the12volt.com/relays/page5.asp

The diagrams I posted up there are old, and not for my alarm :(  And they don't publish current alarm diagrams so mine is not on there and shouldn't be anywhere on the web :(

When I said 2 red wires, I meant both sides of the red wire if ya know what I mean. As in, there was 1 red wire, I cut it in half, then there were kinda 2 red wires. Both sides were positive (cos of the smart siren).

If I installed it on the parking light flash trigger, wouldn't it operate the pager everytime I armed/disarmed, went to valet mode etc etc?

A guy from Directed (they own clifford) said my alarm  could do it, but he can't tell me (cos I could be a thief) and to ask my installers. They don't know how to make it work either. And I don't like the idea of paying em £50 just to solder one wire.

A way they suggested to do it would be to wire it to the door sensors, but that would then operate the pager everytime I opened the door :(

Surely this can't be that hard for a pretty top end alarm ffs

if you alarm is close the diagram to the clifford 50x, you should have a green wire which is negative output when armed.  to wire up a relay with this, connect the green wire to 85, parking light flash to 86 and 87 (87a is not used).  terminal 30 would then go to positive trigger on your pager.  with this setup, your pager will only go off when armed and the parking lights flashing.  this is not a constant 12 volts, but it does provide you a (+) trigger.