25Pin Dark Grey Female Car Audio Connector Aftermarket Stereo Connectors 160027-0014 – Reliable Interface for Factory-to-Aftermarket Head Unit Integration

When upgrading your vehicle’s audio system, maintaining the integrity of the original wiring is crucial. The TS30377-25P-21-3 dark grey female car audio connector provides a professional-grade solution for connecting aftermarket stereos to factory harnesses—without cutting or splicing wires. As the mating counterpart to the male housing TS30377-25P-11-3, this 25-pin female connector ensures a secure, plug-and-play connection that supports full signal transfer across all audio channels, power lines, ground circuits, and control functions. Designed for use in cars, yachts, UTVs, and other specialty vehicles, it enables clean installations that are both reversible and reliable, making it ideal for DIY enthusiasts and professional installers alike.

Technical Details at a Glance

Why Dark Grey? Professional Aesthetics Meet Functional Design

The dark grey housing of the TS30377-25P-21-3 isn’t just about looks—it’s a deliberate design choice. This neutral tone blends naturally with most OEM wiring looms, creating a factory-like finish after installation. At the same time, it offers sufficient contrast against black connectors and cables, making it easier to identify during servicing or troubleshooting. The color resists fading from UV exposure and doesn’t show dust or minor smudges as easily as lighter shades. Combined with precision-molded alignment guides and a positive-locking mechanism, the housing ensures accurate, rattle-free mating every time.

Built for Durability in Mobile Environments

Vehicles subject electrical components to constant vibration, temperature extremes, moisture, and chemical exposure. The TS30377-25P-21-3 is engineered to withstand these challenges. Its housing is made from either PBT+GF15% or PA66+GF30%, two glass-fiber-reinforced thermoplastics known for high mechanical strength, dimensional stability, and resistance to heat deformation. Terminals are crafted from copper alloy, brass, or phosphor bronze—metals selected for excellent conductivity, low contact resistance, and long-term corrosion resistance. This combination ensures stable signal transmission, minimal voltage drop, and extended service life even under demanding conditions.

Seamless Integration for Aftermarket Audio Systems

This 25-pin female connector supports full compatibility between factory harnesses and modern head units. It maintains continuity across speaker outputs, power feeds, ground paths, illumination signals, and steering wheel control inputs, enabling features like volume up/down, track skip, and hands-free calling to function normally. The precise pin layout prevents misalignment, while the robust terminal design ensures reliable contact over thousands of mating cycles. Whether you're upgrading a sedan, SUV, boat, or off-road vehicle, this adapter delivers a professional-grade installation without compromising performance.

OEM & ODM Support for Industry Partners

We provide comprehensive customization services for brands, distributors, and system integrators. From private labeling and packaging to mold development and modified pin configurations, our team supports full product development. With in-house tooling and strict process controls, we help businesses bring tailored audio connectivity solutions to market quickly and efficiently.

Quality You Can Trust

All products are manufactured in compliance with IATF 16949 (automotive quality), ISO14001 (environmental management), and RoHS (hazardous substance restrictions). Each unit undergoes 100% inspection before shipping, including visual checks, continuity testing, and mating verification. This ensures consistent quality and reliability across every production batch.

Need Help Confirming Compatibility?

If you're unsure whether this connector fits your vehicle’s factory harness, contact our technical support team. Provide your car model, year, or a photo of the original plug, and we’ll help verify fitment or recommend the best solution for your needs.

About TSCN – Your Partner in Automotive Connectivity

Zhejiang Tongsheng Electronic Co., Ltd. (TSCN) has over 25 years of experience designing and manufacturing high-performance Automotive Connectors. Specializing in audio interface solutions and wire harness adapters, we serve customers worldwide with reliable, compliant, and innovative products. Our commitment to quality and customer satisfaction makes us a trusted name in the aftermarket industry.

Request a Quote or Sample

To get pricing information, technical drawings, or sample units, email us at mandy@tscn.com.cn. We offer fast turnaround and personalized support for all inquiries.