My coupe has the Scorpion alarm, and the bonnet switch is simple up/down system. Only 1 cable to the switch, when the bonnet is opened the switch makes a connection with the chassis (so its a ground wire) and the alarm would go off.
Thank you guys, was just looking for where to put it, after the recent alarm talks came to my mind I have the cable abandoned there with no button connected. Cheers.
IIRC there is a round plastic 'plug' inside the inner bonnet edge which makes contact with the switch. That'll give you the exact location for the OE Meta.