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H1/5
BLACK (-) CHASSIS GROUND
Remove any paint and connect this wire to bare metal, preferably with a factory
bolt rather than your own screw. (Screws tend to either strip or loosen with time)
We recommend grounding all your components including the siren to the same
point in the vehicle.
H1/6
VIOLET (+) DOOR TRIGGER INPUT, ZONE 3
This wire is used in vehicles that have a positive (+) switched dome light circuit.
Connect the violet wire to a wire that shows (+)12V when any door is opened,
and ground when the door is closed. This wire reports Zone 3.