---
product_id: 41149132
title: "Maestro HRN-RR-GM3 Plug and Play T-Harness for GM3 Vehicles, with Speaker"
brand: "maestro"
price: "VT743"
currency: VUV
in_stock: false
reviews_count: 8
url: https://www.desertcart.vu/products/41149132-maestro-hrn-rr-gm3-plug-and-play-t-harness-gm3
store_origin: VU
region: Vanuatu
---

# Steering Control Bluetooth Retention Plug & Play Maestro HRN-RR-GM3 Plug and Play T-Harness for GM3 Vehicles, with Speaker

**Brand:** maestro
**Price:** VT743
**Availability:** ❌ Out of Stock

## Summary

> 🚗 Upgrade Your Ride with Ease!

## Quick Answers

- **What is this?** Maestro HRN-RR-GM3 Plug and Play T-Harness for GM3 Vehicles, with Speaker by maestro
- **How much does it cost?** VT743 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/41149132-maestro-hrn-rr-gm3-plug-and-play-t-harness-gm3)

## Best For

- maestro enthusiasts

## Why This Product

- Trusted maestro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **OnStar Compatibility:** Enjoy OnStar services without missing a beat.
- • **Performance Insights:** Get real-time engine performance data on your touchscreen.
- • **Seamless Integration:** Effortlessly connect your iDatalink-compatible stereo.
- • **Backup Camera Support:** Maintain your factory backup cam for added safety.
- • **Steering Wheel Control:** Keep your hands on the wheel with retained audio controls.

## Overview

The Maestro HRN-RR-GM3 Plug and Play T-Harness is designed for select 2014-up GM vehicles, allowing you to connect an iDatalink-compatible car stereo while retaining essential features like steering wheel controls, OnStar, backup camera functionality, and Bluetooth. This harness ensures a seamless installation experience and enhances your vehicle's tech capabilities.

## Description

GM3 Plug and Play T-Harness for GM3 Vehicles, With Speaker. Allows installation of a new car stereo in select Fiat vehicles (also requires the Maestro ADS-MRR module).

## Features

- Connect an iDatalink-compatible car stereo and retain steering wheel controls, OnStar, backup cam, and Bluetooth in select 2014-up GM-made vehicles
- Allows installation of a new receiver with an iDatalink port in select GM vehicles (also requires the Maestro ADS-MRR module)
- Retains the use of your steering wheel audio controls and warning chimes
- Retains OnStar (with Bluetooth), factory backup cam, vehicle customization options
- displays engine performance data on touchscreen

## Images

![Maestro HRN-RR-GM3 Plug and Play T-Harness for GM3 Vehicles, with Speaker - Image 1](https://m.media-amazon.com/images/I/81itVnl9z5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Swift
  

*by M***T on Reviewed in the United States on January 29, 2024*

Swift installation

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Recommended
  

*by T***I on Reviewed in the United States on September 5, 2023*

Very high quality

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great product, I am glad it is around! Installing an aftermarket system has never been better!
  

*by S***Y on Reviewed in the United States on June 12, 2017*

Worked as expected, very well made, OEM quality and style connectors. One thing is that my 2015 Tahoe is one of the ones without an HMI unit behind the glove box, so the supplied connector for the rear view camera interface had nowhere to go. Luckily when I called iData link support they knew which wires on the vehicle side harness were for the camera. They suggested soldering to these wires, I counter suggested de-pinning the supplied camera connector and moving those pins to the iDatalink side of the main harness connector. This worked, and I hope they update their instructions for this work around.

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**Shop now:** [https://www.desertcart.vu/products/41149132-maestro-hrn-rr-gm3-plug-and-play-t-harness-gm3](https://www.desertcart.vu/products/41149132-maestro-hrn-rr-gm3-plug-and-play-t-harness-gm3)

---

*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-17*