iDatalink’s HRN-RR-TO1 wiring adapter works in conjunction with iDatalink’s Maestro ADS-MRR or ADS-MRR2 module, allowing you to connect a new car stereo in select 2006-up Toyota-made vehicles,  Once connected, you’ll retain the use of your steering wheel audio controls and your factory amp in these vehicles.
The package includes connectors that plug in between the Maestro module and your factory radio’s wiring plugs. You’ll have to solder or splice together this harness’s power/ground, illumination, speaker, and navigation output wires to the corresponding wires on your aftermarket receiver’s wiring harness.
allows installation of a new car stereo in select Toyota vehicles (also requires the Maestro ADS-MRR or ADS-MRR2 module)
retains the use of your steering wheel audio controls and factory amp
retains select factory features and displays performance data on touchscreen with select Alpine, JVC, Kenwood and Pioneer receivers
What’s in the box:
iDatalink HRN-RR-TO1 Factory Integration Adapter owner’s manual
Vehicle/radio harness
10-pin to 20-pin JBL adapter
3 Backup camera harnesses
20-pin SWC adapter
28-Pin SWC adapter
OBDII harness