Professional Installation
Convenient Service

Trailer Hitches
Bike Racks
Running Boards
Roof Rails

Connector Location: The completed 7-way connector is mounted outside at the hitch. A 7-way-to-4-way adapter provides a flat-4 connection when required.

1. Installing the Towing Hardware While the Fascia Is Open

The safety-chain anchors, wiring bracket, and tow-compatible latch hardware are installed during the hidden-hitch procedure so the structure does not need to be opened and modified a second time.

2. Mounting the Passive Controller Inside the Vehicle

The control module is secured in the protected rear cargo area. Its signal inputs are connected only after the left-turn, right-turn, marker-light, and brake circuits have been positively identified with test equipment.

3. Routing the Trailer Output Outside

The output lead passes through the specified rear body grommet. The opening is sealed after routing so the wire remains protected and the cargo area is not left open to water or exhaust intrusion.

4. Supplying Ground and Fuse-Protected Battery Power

The module is grounded at the factory rear grounding point. A dedicated power lead is routed along the protected underbody path to the engine-compartment battery connection and fused only after the remaining wiring is complete.

5. Building and Mounting the Exterior 7-Way

The output wires are terminated in the correct 7-way positions, the housing is mounted to the hidden hitch structure, and the harness is secured away from the exhaust, moving components, and fascia attachment points.

6. Testing Before Final Reassembly

Constant power, running lights, brake lights, both turn signals, and ground integrity are tested at the completed connector while the system remains accessible. The fascia is reinstalled only after the passive wiring has passed the full function check.

Passive Wiring Only. We do not install active Porsche trailer-wiring modules. The passive system can be fully tested before the bumper is reassembled, avoiding the uncertainty and return-visit risk of an active system that may require programming.

Do Not Wait if Towing Is a Possibility. Adding wiring later requires removing the rear bumper again and modifying the installed hitch for the towing hardware, so much of the original installation labor must be repeated.

Plan wiring with the hitch installation. Adding compatible wiring later is considerably more expensive on a Stealth hitch. The rear bumper must be removed again and the hitch modified to accept the wiring hardware, so much of the original hitch-installation work has to be repeated. If there is any chance you may tow in the future, install the wiring during the original hitch appointment.