Cobra 4160 Alarm Wiring Diagram -

Chassis ground. Ensure this is a clean, paint-free metal contact. Ignition and Sensing

Ensure the emergency override touch-key receptacle is mounted in a visible but reachable spot. Without this, you cannot disarm the system if your remote fails. ⚠️ Important Disclaimer

The 4160 series belongs to the "Bridge" family of Cobra alarms. It features a compact siren/control unit usually mounted in the engine bay. Unlike modern CAN-bus systems, this is an analog alarm, meaning every connection requires physical splicing into the vehicle's electrical loom. ⚡ Main Wiring Loom Breakdown cobra 4160 alarm wiring diagram

Negative door trigger. Connect to the interior light switch circuit (ground when door opens). Exterior Signaling

The Cobra 4160 uses a 6-pin secondary harness or internal relays to manage door locks. Chassis ground

Most installers use the Violet and Grey wires for lock/unlock signals.

Position the siren unit facing downwards in the engine bay to prevent water from pooling inside the horn. Without this, you cannot disarm the system if

Ignition sense (+12V switched). This tells the alarm when the engine is running.