would this circuit work?

[settra]

Hello forum ! I want to create a circuit, that will produce a 12v output signal, when my car alarm in NOT armed..

So, what i have :
An aftermarket alarm system, that only has a GND output, when the system IS armed..
Also, it produces 12v square pulse, when the systems is arming/de-arming for the doors to lock/unlock

What i want :
To have a 12v signal (that will be used to drive some relays maybe) ,when the car alarm is not armed.
And the whole circuit should not be consuming any current at all, when the car alarm is armed...

i have come up with the following circuit :


will it do what i want?? what tipe of transistor should i use?? (MOS or BJB , and N or P ) ?? thanks !
any feedback is appriciated !

 

[crutschow]

I don't see the car alarm contacts in your circuit.

 

[settra]

lol yes forgot to change it.... i will fix it, but in the meantime assume that the label "door signal" is where the pulse to unlock the doors comes from, and the "IGN kill" switch is the pin that is grounded when the alarm is armed !

 

[crutschow]

I don't think well from written descriptions of a circuit, so please redraw it with the correct connections.