28Pin Female Black Car Aftermarket Stereo Audio Connector 3-2188225-2 – Durable OEM-Matching Harness Adapter for Vehicle Audio Integration

The TS30243-28P-21-3 is a 28-position female black Automotive Connector designed to provide a seamless, plug-and-play solution for installing aftermarket stereos into factory wiring systems. As the female receptacle that mates with the male plug TS30243-28P-11-3, this connector allows for a clean, non-invasive installation without cutting or splicing original vehicle harnesses. The black housing is commonly used in OEM applications where a neutral, low-visibility connector is preferred, making it ideal for integration into factory-style audio kits. This model is widely used in audio interface solutions for Toyota, Lexus, and other Asian vehicle platforms that utilize a standardized 28-pin black connector for signal transmission.

Engineered for reliability and ease of use, the TS30243-28P-21-3 supports full electrical continuity across all essential circuits, including left and right audio channels, power, ground, illumination, and steering wheel control signals. Its secure locking design ensures a stable, vibration-resistant connection, making it suitable for use in passenger cars, marine yachts, UTVs, and off-road vehicles where durability is critical. By preserving the original factory harness, this adapter enables easy restoration or future upgrades, offering a professional-grade solution that maintains vehicle integrity while enhancing audio performance.

Key Product Details

Black Housing for OEM-Style Integration

The black housing of the TS30243-28P-21-3 provides a discreet and professional appearance, blending seamlessly with standard automotive wiring looms. Unlike brightly colored connectors, black is often used in factory harnesses where a low-profile, universal connector is required. This makes it ideal for applications where visual consistency with OEM components is important, such as in high-end audio installations or dealer-level service centers. The neutral color also helps reduce visual clutter under the dashboard, allowing technicians to focus on critical connections during complex upgrades.

High-Strength Materials for Long-Term Performance

Constructed from reinforced engineering plastics—PBT+GF15% or PA66+GF30%—this connector offers exceptional resistance to heat, impact, and chemical exposure. These materials are designed to maintain dimensional stability and mechanical strength across extreme temperature ranges (-40°C to +120°C), preventing warping or cracking over time. The internal Terminals are made from copper alloy, brass, or phosphor bronze, ensuring excellent electrical conductivity, low contact resistance, and resistance to oxidation. This robust construction ensures reliable signal transmission and long-term durability in demanding environments such as marine vessels, off-road vehicles, and high-mileage passenger cars.

Custom OEM & ODM Manufacturing Solutions

We offer comprehensive customization services for businesses developing branded audio products or specialized harness systems. From mold creation and material selection to packaging and labeling, our team supports full product development. Whether you need a modified version of this connector or a completely new design for a unique application, we provide rapid prototyping, scalable production, and strict quality control to meet your technical and market requirements efficiently.

Compliance and Quality Verification

All units are manufactured in compliance with IATF 16949 (automotive quality), ISO14001 (environmental management), and RoHS (hazardous substance restrictions). Each connector undergoes 100% inspection before shipment to verify terminal alignment, housing integrity, color accuracy, and mating performance. This ensures consistent quality and reliability for every customer, whether ordering samples or large-volume production runs.

Need Help Confirming Fitment?

Unsure if this connector matches your vehicle? Compare it with reference images or send us a photo of your factory harness. Our technical team will quickly verify compatibility. Can't find the exact part you need? Contact us at mandy@tscn.com.cn—we specialize in sourcing and manufacturing custom connectors for unique vehicle platforms and industrial applications.

About TSCN – Automotive Electrical Components Specialist

Zhejiang Tongsheng Electronic Co., Ltd. (TSCN) is a trusted manufacturer of precision automotive connectors with over 25 years of industry experience. We specialize in audio interface solutions, wire harness components, and customized electrical connectors for vehicles worldwide. Our products are engineered for durability, precision, and compatibility, serving distributors, installers, and OEM partners in the global automotive aftermarket.

Request a Quote or Sample Today

For datasheets, pinout diagrams, sample units, or bulk pricing information, please contact our sales team at mandy@tscn.com.cn. We offer fast response times and expert guidance to help you select the right components for your projects.