| | Function | | --------------------- | ------------------------------------------------------------------------------------------------------------------------------------------ | | Orange Loom | This denotes the main harness bundle coming from the siren module. | | Red | Primary 12V Power: This is a constant power connection, typically wired directly to the vehicle's battery or a main constant 12V source. | | Blue/Pink | Ignition Input: This wire connects to a vehicle circuit that has +12V power only when the ignition is turned on. | | Yellow | This wire is a signal input for the driver's door pin switch. It is used to detect if the door is opened when the system is armed. | | Green/Brown | Lock/Unlock Signals: This pair is for the central locking system. They connect to the vehicle's door lock control circuits. | | Auxiliary Wires | The system may have other wires for options like a hood pin switch, starter immobilizer cut, or an extra channel for a trunk release. |
According to the Auto-Alarm Installation Manual , proper placement of individual components prevents environmental interference and maximizes security: 1. Mounting the Main Alarm Unit cobra 3865 manual
Detects movement inside the cabin.
"It’s not just a radio," Miller grunted, not looking up. "It’s a Cobra 3865. And it’s not a spare. It’s the spare." | | Yellow | This wire is a
Features a battery backup so it keeps wailing even if the car battery is disconnected. They connect to the vehicle's door lock control circuits
Just then, the lights in the basement flickered and died. The hum of the building's HVAC system silenced. They were plunged into darkness, save for the amber glow of the Cobra's dial and the flashlight Miller pulled from his belt.