I need to upgrade the standard issue alarm on my 99 Impreza to add a vibration sensor to it so that I can be informed when 'orrible little oinks are trying to rip yet more parts from my car.

I'd prefer to just add an extra to the current alarm system as I'll be getting shot of it in around 10 months time.

Any ideas? Apart from dust the car with anthrax?

 

best bet would be talk to a Sigma alarm dealer and see if there is anything that can be added to the M30 !