---
product_id: 622235993
title: "Maestro HRN-HRR-TO1 T-Harness for Select Toyota & Scion Vehicles 2005-19, replace the factory radio while retaining steering wheel controls & use of amp (ADS-MRR or ADS-MRR2 module required)"
brand: "idatalink"
price: "104821CFA"
currency: XOF
in_stock: true
reviews_count: 3
url: https://www.desertcart.sn/products/622235993-maestro-hrn-hrr-to1-t-harness-for-select-toyota-scion
store_origin: SN
region: Senegal
---

# Supports Factory Amplifier Plug & Play T-Harness Retains Steering Wheel Controls Maestro HRN-HRR-TO1 T-Harness for Select Toyota & Scion Vehicles 2005-19, replace the factory radio while retaining steering wheel controls & use of amp (ADS-MRR or ADS-MRR2 module required)

**Brand:** idatalink
**Price:** 104821CFA
**Availability:** ✅ In Stock

## Summary

> 🔗 Upgrade Smart, Drive Connected: Keep Control & Sound Intact!

## Quick Answers

- **What is this?** Maestro HRN-HRR-TO1 T-Harness for Select Toyota & Scion Vehicles 2005-19, replace the factory radio while retaining steering wheel controls & use of amp (ADS-MRR or ADS-MRR2 module required) by idatalink
- **How much does it cost?** 104821CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/622235993-maestro-hrn-hrr-to1-t-harness-for-select-toyota-scion)

## Best For

- idatalink enthusiasts

## Why This Product

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

## Key Features

- • **Amplify Your Audio:** Maintain use of your vehicle’s original amplifier for premium sound quality with aftermarket radios.
- • **Effortless Integration:** Simplifies radio replacement with a true plug & play design for select Toyota & Scion models (2005-19).
- • **Tailored Compatibility:** Specifically engineered to work with iDatalink Maestro ADS-MRR or ADS-MRR2 modules for flawless connectivity.
- • **Future-Proof Installation:** Supports a wide range of head units from Alpine, Pioneer, Sony, and Kenwood/JVC, ensuring your upgrade stays cutting-edge.
- • **Seamless Control Retention:** Keep your factory steering wheel controls fully functional—volume, seek, and more—without compromise.

## Overview

The IdatalinkMaestro HRN-HRR-TO1 T-Harness is a precision plug & play solution designed for select Toyota and Scion vehicles (2005-2019). It enables seamless factory radio replacement while preserving steering wheel controls and factory amplifier functionality, requiring the iDatalink Maestro ADS-MRR or ADS-MRR2 module and compatible head units for full operation.

## Description

IdatalinkMaestro HRN-HRR-TO1 T-Harness for Select Toyota & Scion Vehicles 2005-19, replace the factory radio while retaining steering wheel controls & use of amp (ADS-MRR or ADS-MRR2 module required)

## Features

- SIMPLIFIED INSTALLATION: This installation harness requires the iDatalink Maestro ADS-MRR or ADS-MRR2 module to simplify radio replacement for Select Toyota/Scion Vehicles 2005-19 while retaining factory features.
- RETAIN STEERING WHEEL CONTROL & USE OF FACTORY AMP: The harness allows you to keep the original steering wheel controls for functions like volume, seeking, and more with an aftermarket radio as well as any factory amplifier that may be installed in the vehicle.
- COMPATIBLE CONNECTION: Designed specifically for use with the iDatalink Maestro ADS-MRR or ADS-MRR2 module, this T-harness provides the correct connections between the interface and the vehicle.
- PLUG AND PLAY DESIGN: With dedicated plugs for quick, proper installation, this harness makes replacement of the factory radio seamless while retaining key compatible factory features.
- INSTALLATION NOTE: This HRN-HRR Plug & Play Harness requires an Idatalink Maestro Interface Module (ADS-MRR or ADS-MRR2) and the corresponding Idatalink Maestro Car Stereo Head-Unit ACC-HU-ALP1 (Alpine), ACC-HU-PIO1 (Pioneer), ACC-HU-SON1 (S O N Y), ACC-HU-KEN1 (Kenwood/JVC with 22-Pin Connector) or ACC-HU-KEN2 (Kenwood/JVC with 16-Pin Connector) Installation T-Harness. Sold separately. (ADS-MRR: Vehicle Coverage: 30 Makes - Models: 4318 - Years: 2002+) (ADS-MRR2: Vehicle Coverage: 30 Makes - Models: 4582 - Years: 2002+ with 3 Programmable Outputs)

## Product Details

- **Brand:** Idatalink
- **Material:** Polyvinyl Chloride (PVC)
- **Cable Type:** vehicle-specific wiring harness
- **Manufacturer:** Idatalink
- **UPC:** 627780004211

## Images

![Maestro HRN-HRR-TO1 T-Harness for Select Toyota & Scion Vehicles 2005-19, replace the factory radio while retaining steering wheel controls & use of amp (ADS-MRR or ADS-MRR2 module required) - Image 1](https://m.media-amazon.com/images/I/71JmtXHjzOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Needed This For My After Market Heat Unit
*by N***E on December 12, 2024*

This worked great in my 2014 Toyota Prius when I replaced the OEM head unit with an Apple Car Play after market head unit in order to keep my steering wheel controls. Make sure you read reviews, go to the manufacturer website to enter your car details to get the exact parts/model versions you need. There are other accessories by this manufacturer that will give you OEM working features with an after market radio head unit other than this device for the steering wheel controls. That’s why you should visit the manufacturer website. I’m super happy event though I spent some money on my new after market Apple CarPlay head unit. This device made it worth every penny. My volume, channel tuner, and hands free phone call features from the steering wheel controls all work now. Highly suggest.

### ⭐⭐⭐⭐⭐ In stock and delivered fast.
*by C***Y on May 22, 2024*

This is currently backordered through crutchfield until the end of next month. Amazon had my back and it was delivered two days earlier than the original estimate. Made switching my aftermarket stereo from my Tacoma to my Tundra a breeze.

### ⭐ Do not recommend
*by J***E on July 1, 2024*

Do not recommend this product or company

## Frequently Bought Together

- Idatalink Maestro HRN-HRR-TO1 T-Harness for Select Toyota & Scion Vehicles 2005-19, replace the factory radio while retaining steering wheel controls & use of amp (ADS-MRR or ADS-MRR2 module required)
- Idatalink Maestro Acc-HU-SON1 Plug and Play Installation T-Harness for Select Sony Car Radios

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-01-29*