iDatalink HRN-HRR-TO3 Toyota-specific Harness

iDatalink HRN-HRR-TO3 Toyota-Specific Harness

Fitment:

- 2020 - 2024 4Runner 
- 2020 - 2021 Tundra 
- 2020 - 2023 Tacoma
- 2020 - 2022 Sequoia

Toyota Integration Made Easy

The iDatalink HRN-HRR-TO3 wiring harness is designed to seamlessly integrate an iDatalink-ready aftermarket head unit into select Toyota vehicles when paired with a Maestro ADS-MRR or ADS-MRR2 module (sold separately). This vehicle-specific harness allows you to upgrade your stereo while retaining critical factory features and controls.

Once installed, you’ll keep your factory steering wheel audio controls, factory amplifier, backup camera, vehicle personalization settings, and rear seat entertainment system (where equipped). With compatible iDatalink-ready radios, you’ll also gain access to on-screen vehicle data, performance gauges, and factory feature displays directly on your new head unit.

Plug-and-Play Flexibility

The HRN-HRR-TO3 includes connectors that plug directly between the Maestro module and your Toyota’s factory wiring, simplifying installation and reducing guesswork. It also features an inline head-unit connector designed to work with iDatalink “Head-Unit Direct” harnesses for select radio brands—eliminating the need for wire splicing altogether.

If your radio does not support a Head-Unit Direct harness, the connector can be removed, allowing you to splice directly to your radio’s wiring harness as needed.

Installation Note:
This harness must be used with an iDatalink Maestro ADS-MRR or ADS-MRR2 module to function properly.

Key Features & Benefits

• Enables installation of an iDatalink-ready head unit in select Toyota vehicles
• Retains steering wheel audio controls and factory amplifier
• Maintains factory backup camera, vehicle settings menu, and rear seat entertainment (if equipped)
• Displays select vehicle data and performance information on compatible radios
• Provides parking brake, reverse, and speed sensor outputs
• Compatible with iDatalink Head-Unit Direct harnesses for true plug-and-play installs
• Vehicle-specific design for reliable OEM-level integration

What’s Included

• iDatalink HRN-HRR-TO3 vehicle installation harness
• Pre-out harness
• OBD-II junction harness
• Owner’s manual

Warranty: 1 year
Manufacturer Part Number: HRN-HRR-TO3