Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
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2004 Chrysler 300M
These items fit your vehicle
2004 Chrysler 300M
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Running new trailer wiring can be a pain, but the Curt T-Connector harness skips all that. It plugs right into your vehicle’s factory tail light connectors, so there’s no cutting or tapping into wires. The tight-fitting connectors click into place for a secure connection, giving you a clean setup that’s ready to use.
This harness includes a powered converter that draws power directly from the battery through its own fused line. That means your trailer lights get consistent power without overloading the vehicle’s circuits. Once the black lead is connected to the positive battery terminal with the included fuse holder, you get dependable performance for running, brake, and turn signals.
The harness installs behind the tail lights, keeping everything tucked away and protected. You won’t have wires running all over or visible splices to worry about. The design uses existing vehicle connectors, which keeps the wiring hidden and reduces the chance of wear or damage down the road.
The 4-flat connector gives you what most trailers need—running lights, brake lights, and turn signals. It’s the standard plug for small trailers, campers, and cargo haulers. Once installed, you’re wired up and ready to tow safely with a reliable connection every time.
Customer Satisfaction Score:
92% were satisfied with this product
8% of customers were not satisfied
Ratings & Reviews
Billy
7/12/2025
Its still working great.
Do you have a question about this Custom Fit Vehicle Wiring?
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Jenny N.
2/10/2023
This harness only comes with a 4-way connector that does not include a reverse light wire. You can add an adapter like part # 20036 for the reverse wire function. You would just need to wire the blue wire info the reverse light wire on the vehicle.