I can understand your frustration. So to be clear.
Your car does not ever run (does crank) with battery in system.
Remove battery from system by removing neg clamp from batt post and jump using either the negative clamp or cable connection point on car, using what? a running car or another battery? (13.8 volts vs 12v.)? Either way the alarm module is still in circuit. But car runs every time?
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