Oyviny Brake Controller Adapter 3015-P for 2003–2006 Chevy/GMC (4‑Pin, Plug‑and‑Play) — Compatible with Tekonsha/Reese/Draw‑Tite

The Oyviny 3015-P Brake Controller Adapter is a plug-and-play wiring harness that lets you connect an aftermarket 4-pin trailer brake controller to 2003–2006 Chevrolet and GMC trucks and similar models without splicing.

If you tow regularly, a dedicated brake controller improves trailer braking coordination. The Oyviny 3015-P harness provides a factory-style connector that mates with the OEM dash port on compatible vehicles, saving time and preserving factory wiring. It’s compatible with many popular controllers from Tekonsha, Reese, Draw-Tite and others, and uses durable materials to resist corrosion and wear.

Which vehicles and controllers will this adapter work with?

This harness is designed for specific GM full-size trucks and SUVs from the early 2000s and some Hummer models. It fits the factory brake controller port used on these vehicles and uses the standardized 4-pin controller plug found on many aftermarket units.

• Compatible vehicles: 2003–2006 Chevrolet Silverado, Suburban, Tahoe, Avalanche; 2003–2006 GMC Sierra, Yukon; 2003–2006 Cadillac Escalade; and 2003–2007 Hummer H2.
• Compatible controllers: Tekonsha Prodigy, P2, P3, Primus IQ, Voyager, PowerTrac; Reese Towpower models; Draw-Tite Activator series, and other 4-pin controller brands.
• Connector type: standard 4-pin brake controller plug that matches most controller harness inputs.

How easy is installation and what tools are required?

Installation is straightforward because the adapter connects directly—no cutting, splicing, or tapping into factory wires. You simply plug the harness into your brake controller and then into the vehicle’s built-in port under the dash, trimming installation time and preserving the OEM harness.

• Installation method: true plug-and-play; no wire modifications needed.
• Tools required: typically none beyond reaching under the dash; a flashlight or trim tool can help access the port.
• Suggested steps: locate factory port beneath dash, attach controller plug to adapter, plug adapter into port, test controller operation.

What are the build quality and wiring details?

The Oyviny adapter uses reliable materials to maintain electrical integrity and resist corrosion over time. Tin-plated copper terminals and pure copper wires maximize conductivity, while an ABS plastic housing and a protective nylon sleeve guard the harness from abrasion and environmental exposure.

• Contacts: tin-plated copper terminals for improved corrosion resistance and conductivity.
• Wire protection: black nylon net tube reduces abrasion and strain on wires.
• Length and flexibility: ~31 inches for comfortable routing and flexible placement of the controller.

Will this adapter change the vehicle or controller performance?

The adapter is a passive wiring harness and does not alter controller logic or introduce electronic modulation changes. It simply provides the correct pinout and connection path so your chosen brake controller can operate as intended using the vehicle’s factory wiring and sensor inputs.

• Function: preserves controller functionality by delivering correct signals through factory port.
• Safety: reduces the risk of cross-wiring or incorrect connections compared with manual splicing.
• Compatibility note: verify your controller uses a standard 4-pin plug before purchase.

Who this is for: The Oyviny 3015-P is aimed at owners of compatible early–2000s Chevy, GMC, Cadillac and Hummer trucks or SUVs who want a fast, non-destructive way to install a reputable aftermarket 4-pin brake controller. It’s ideal for DIY installers, fleet users who value reliability, and anyone who prefers preserving factory wiring while adding trailer brake control functionality.