Alarm with turbo timer

Howdy team, just wondering how I would go about installing an alarm in a car with a turbo timer. Ive put a few alarms in before, but none with turbo timers. The alarm is a Fusion F-2000. If the "arm" button is pressed while the engine is running all it does is lock all the doors and enter anti-hijacking mode (or something like that), so obviously if I try arming the alarm while the turbo timer is still counting down thats what it does...doesnt actually arm the alarm.

Whats the usual way of getting around this?

Cheers