Professional Installation
Convenient Service

Trailer Hitches
Bike Racks
Running Boards
Roof Rails

Connector Location: Stored inside the rear cargo area when not in use and routed through the liftgate opening only while towing.

The Trailblazer uses a passive powered converter connected behind both rear lamp circuits. The module and flat-4 remain protected inside the cargo area, with a fused power lead routed to the battery.

1. Opening the Rear Cargo Area

The cargo floor, threshold, storage trays, tie-downs, and required side trim are removed carefully to reach both rear lamp connectors.

2. Connecting the Driver-Side Lamp Circuit

The yellow-wire harness is inserted between the original driver-side lamp connectors, preserving the factory wiring and locking tabs.

3. Routing to the Passenger-Side Lamp

The green-wire branch is carried behind the threshold to the passenger side and connected inline at the matching lamp circuit.

4. Grounding and Securing the Converter

A clean structural ground is established and the converter is mounted on a protected flat surface where it cannot move beneath the cargo trim.

5. Installing the Fused Power Lead

A protected battery feed is routed away from exhaust heat, moving components, and sharp sheet-metal edges, with the fuse installed only after the remaining connections are complete.

6. Testing and Demonstrating Interior Storage

All flat-4 functions are tested before the cargo trim is restored, then the connector is rolled up inside and demonstrated for liftgate-seal use while towing.

Our Wiring Standard: Every lighting output and the ground circuit are function-tested before removed trim or underbody components are restored.