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Tesla Model Y (2020–2022) Stealth Trailer Wiring Installation
Vehicle Coverage: 2020–2022 Tesla Model Y; exact trim and build-date fitment are verified before scheduling
Output: Passive 4-way flat trailer-light connector
Finished Connector Location: Mounted outside the vehicle at the concealed hitch, with the flat-4 secured by the Stealth magnetic holder when not connected to a trailer.
Availability: Offered with the compatible Stealth towing package, not as an active factory-style module installation
Connector Location: Mounted outside the vehicle at the concealed hitch, with the flat-4 secured by the Stealth magnetic holder when not connected to a trailer.
The 2020–2022 Model Y passive trailer wiring is installed with the original Stealth towing package while the bumper is already removed. The flat-4 finishes outside at the concealed hitch and can be fully tested before the bodywork is restored.
1. Using the Open Rear-Body Access
With the fascia removed for the hidden hitch, the lighting connections and module location can be reached without forcing interior panels after the hitch is complete.
2. Installing and Securing the Passive Module
The converter is mounted on a protected surface and connected to the required left and right lighting circuits without installing an active programmed module.
3. Completing the Fused Power and Ground
A protected power feed and clean structural ground are established, with wiring supported away from sharp metal and moving components.
4. Routing Through the Hitch Provision
The flat-4 lead passes through the hitch’s dedicated wiring location and is secured outside behind the lower access panel.
5. Mounting the Exterior Connector
The dust-covered flat-4 is attached to the Stealth magnetic holder so it stays accessible near the receiver without hanging below the bumper.
6. Testing and Closing the Vehicle
All trailer-light outputs and ground are tested before the fascia, sensor connections, lamps, lower covers, and cargo trim are reinstalled.
Why We Use Passive Wiring: The completed circuit can be function-tested before the bumper is reinstalled. We do not install active trailer modules that may require programming or prevent complete verification during the appointment.
Plan for wiring now if towing may be in your future. Adding trailer wiring after a Stealth hitch has already been installed is considerably more expensive. The rear bumper must be removed again and the hitch must be modified to accept the wiring hardware, repeating much of the original hitch-installation labor.