iDatalink HRN-HRR-TO1 Toyota-specific Harness

iDatalink HRN-HRR-TO1 Vehicle-Specific Harness — Delivered by Trail Grid Pro

Designed in collaboration with Toyota, the iDatalink HRN-HRR-TO1 wiring harness makes upgrading your factory radio seamless while preserving the OEM features you rely on. When paired with an iDatalink Maestro ADS-MRR or ADS-MRR2 interface module (sold separately), this harness allows you to install an aftermarket stereo in select 2005–2019 Toyota and Scion vehicles without sacrificing factory functionality.

Once installed, you’ll retain key features including steering wheel audio controls, the factory amplifier, and the OEM backup camera, ensuring your upgrade feels factory-integrated rather than aftermarket.

Built for iDatalink-Ready Performance

When used with an iDatalink-ready head unit, the HRN-HRR-TO1 unlocks even more advanced integration. Compatible receivers can display vehicle settings menus, performance gauges, and vehicle information directly on the touchscreen, delivering a modern infotainment experience while keeping your Toyota’s original systems intact.

Flexible, Installer-Friendly Design

This harness plugs directly between the Maestro interface module and your factory radio connectors for a clean, reliable connection. It also includes an in-line head-unit connector compatible with iDatalink “Head-Unit Direct” harnesses for select radio brands—eliminating the need for splicing. If your radio does not support Head-Unit Direct, the connector can be removed and hard-wired to your radio’s harness as needed.

Installation Notes

• Required: iDatalink Maestro ADS-MRR or ADS-MRR2 interface module
• Designed for select Toyota and Scion vehicles from 2005–2019
• Vehicle-specific fitment required—always confirm compatibility before purchase

Product Highlights

• Enables aftermarket stereo installation in select Toyota & Scion vehicles
• Retains steering wheel audio controls, factory amplifier, and backup camera
• Preserves vehicle settings menu with iDatalink-ready radios
• Displays vehicle data and performance gauges on compatible touchscreens
• Plug-and-play integration with Maestro interface modules
• 1-year manufacturer warranty

What’s Included

• iDatalink HRN-HRR-TO1 vehicle-specific harness
• Front pre-out harness
• A–F interface harnesses
• OBD-II connector harness
• Owner’s manual

Trail Grid Pro ensures you get the correct harness, proper configuration, and expert support, so your Toyota audio upgrade works exactly as intended—right out of the box.