OEM Stereo Interface Adapter for Factory Head Units 🎵

This OEM-grade stereo adapter links the dashboard audio unit to the vehicle’s wiring, amplifier, antenna, USB, microphone, and steering wheel controls. Designed for select Toyota models, it keeps the sound system plug-and-play, clean, and reliable—no splicing, no guesswork. 🔌

Why this part is needed

Use it to replace a damaged factory connector, restore sound after dash work, or when fitting a repaired head unit. It preserves essential functions: CAN/LIN data, illumination dimmer, reverse trigger, amp turn-on, and factory options like backup camera and hands-free calling.

How it works

Inside is a compact PCB and precision terminals that map audio, power, and data pins correctly. It filters noise, stabilizes ACC/BATT feeds, distributes ground, and shields low-level signals to prevent hiss and hum. Keyed housings and locking tabs ensure correct, secure fitment. 🛠️

What happens if it’s broken

Expect no sound, head unit won’t power, random cutouts, static or popping, dead steering wheel buttons, black backup camera, muted mic, or even battery drain overnight. Visual clues include melted pins, cracked latch, bent terminals, or moisture corrosion. ⚠️

Fitment and pro tips

Match connector style and model year before purchase. Disconnect the battery, seat plugs until they click, and never force pins. Avoid cheap copies; poor plating causes noise and heat. After collision repair or rodent damage, replacement is strongly advised. Genuine quality means quiet audio, stable power, and long service life. ✅🚗