28Pin Male Black Key A Car Aftermarket Stereo Audio Connector – Direct Fit Harness Adapter for Toyota Vehicles

The TS30243-28P-11-1 is a 28-pin male black Automotive Connector designed for Key A style factory audio systems in select Toyota models. This connector serves as the male plug that directly mates with the female housing TS30243-28P-21-1, enabling a seamless and secure connection when upgrading to an aftermarket stereo. The black housing provides a factory-matched appearance, blending naturally with original vehicle wiring for a clean, professional installation. As a core component in audio harness adapters, it eliminates the need for cutting or splicing factory wires, preserving the vehicle’s integrity and supporting easy reversibility.

Ideal for both professional installers and automotive enthusiasts, this connector ensures reliable transmission of audio signals, power, ground, and control data such as illumination and steering wheel controls. It is commonly used in Toyota vehicles equipped with the Key A interface, including certain generations of the Camry, Corolla, Highlander, and Sienna. Built for durability and precision, the TS30243-28P-11-1 delivers consistent performance in a wide range of driving conditions, from daily commutes to off-road and marine environments.

Product Specifications

• Model Number    TS30243-28P-11-1

• Connector Type    Male Plug

• Number of Poles    28

• Housing Color    Black

• Mating Housing    TS30243-28P-21-1 (Female)

• Insulation Material    PBT+GF15% or PA66+GF30%

• Terminal Composition    Copper Alloy / Brass / Phosphor Bronze

• Primary Use    Aftermarket Audio Harness – Key A Interface

• Certifications    IATF 16949, ISO14001, RoHS

• Quality Check    100% Inspected Before Shipment

• Minimum Order Quantity    1,000 pcs

• Production Time    2–15 Days

• Custom Services    OEM & ODM with Mold Development

Designed for Key A Toyota Audio Systems

The TS30243-28P-11-1 is specifically engineered for vehicles using the Key A connector standard, distinguishing it from other variants like Key B or colored versions. This ensures perfect compatibility with the factory head unit harness, preventing fitment issues and ensuring a secure, vibration-resistant connection. The black housing maintains a factory-original appearance, making it ideal for installations where a discreet, OEM-like finish is desired. It is commonly used in audio upgrade kits that require no permanent modifications to the vehicle’s wiring.

Premium Materials for Automotive Durability

Constructed from reinforced engineering plastics—PBT+GF15% or PA66+GF30%—this connector offers high resistance to heat, impact, and chemical exposure. These materials ensure dimensional stability and long-term reliability even under extreme operating conditions. The internal Terminals are made from copper alloy, brass, or phosphor bronze, providing excellent conductivity, low contact resistance, and resistance to oxidation. This combination ensures stable signal transmission and long service life in automotive, marine (yacht), and off-road (UTV) applications.

OEM & ODM Manufacturing Support

We provide full customization capabilities for businesses developing branded audio solutions. Whether you need a modified pin layout, custom color, or private-labeled packaging, our team supports product development from concept to mass production. With in-house mold design and tooling, we offer fast prototyping and scalable manufacturing to meet your business needs while maintaining strict quality standards.

Compliance and Quality Assurance

All units are manufactured under IATF 16949 (automotive quality management), ISO14001 (environmental systems), and RoHS (hazardous substance compliance). Every connector undergoes 100% inspection prior to shipping to verify mechanical integrity, terminal alignment, and mating performance. This ensures consistent quality and reliability for every order, large or small.

Need Help Identifying the Right Connector?

If you're unsure whether this connector matches your vehicle, compare it with the provided images or send us a photo of your existing connector or the port it connects into. Our technical team will confirm compatibility quickly. Can't find the connector you need? Email us at mandy@tscn.com.cn—we’ll help source or develop the right solution for your application.

About TSCN – Trusted Automotive Connector Manufacturer

Zhejiang Tongsheng Electronic Co., Ltd. (TSCN) has been a leading supplier of automotive electrical components since 1998. With decades of experience, we specialize in high-precision connectors for audio systems, control modules, and specialty vehicles. Our products are trusted by distributors, installers, and OEMs worldwide for their reliability, accuracy, and durability.

Get a Quote or Request Samples

For technical data sheets, pinout diagrams, sample units, or bulk pricing, contact our sales team at mandy@tscn.com.cn. We offer responsive support and customization guidance to help you succeed in the competitive automotive aftermarket industry.