TR500 Install Guide
π Linxio GPS 4-Pin Tracker β Basic Installation Guide
βοΈ 1. Identify the 4 Wires
Most Linxio 4-pin harnesses use the following standard colors:
Wire Color | Function | Connect To |
|---|---|---|
π΄ Red | +12V/+24V Power | Constant 12V/24V source (battery positive) |
β« Black | Ground | Vehicle chassis or battery negative terminal |
π Orange | ACC / Ignition sense | Wire that becomes live (12V/24V) when ignition key is ON |
π‘ Yellow | Relay control / Output (optional) | To relay if youβre installing a fuel-cut or immobilizer feature (optional |
π 2. Mount the GPS Tracker
- Choose a hidden but signal-friendly location inside the vehicle.
- Common spots: under dashboard, behind glove box, or under rear parcel shelf.
- Avoid placing it directly under metal surfaces.
- The GPS antenna side (flat top) should face upward toward the sky.
β‘ 3. Connect Power and Ground
- Connect the red wire to a constant 12V/24V power line β directly from the fuse box or battery.
- Use an in-line fuse (1Aβ3A) to protect the circuit.
- Connect the black wire securely to a clean ground point on the chassis.
π 4. Connect the Ignition (ACC) Wire
- Find a wire that has 12V/24V only when ignition is ON, Use a Multimeter for this.
- Connect the orange wire there.
- This allows Linxio to detect when the engine is running or off.
π§© 5. (Optional) Connect the Relay / Cut-Off Function
If your tracker supports immobilization (fuel cut, starter disable, etc.):
- Use the Yellow Wire from the tracker to control a relay.
- Wire the relay in series with the fuel pump or starter circuit.
- When activated via the Linxio platform, the relay opens the circuit β disabling the vehicle.
( Please skip this step if youβre doing a standard tracking-only install.)
πΆ 6. Test the Unit
- Turn ignition ON.
- Check tracker LEDs β you should see:
- Power LED (solid)
- GPS LED (blinking, then solid once locked)
- GSM LED (blinking indicates network activity).
- Verify the tracker reports live location in your Linxio platform/app.
Updated on: 12/11/2025
Thank you!

