The iDatalink Maestro ACC-HU-PIO1 adapter allows you to connect select PIONEER radios to compatible iDatalink T-harnesses. This extra harness takes the place of the harness that comes with your new PIONEER stereo. It connects directly between select PIONEER radios and the latest Maestro "Head-unit ready" T-harnesses so you won't have to splice any wires. | Connects in between Idatalink Maestro vehicle-specific T-harness and select PIONEER head units | Also requires an iDatalink Maestro ADS-MRR, ADS-MRR2 or ADS-SR module and compatible iDatalink vehicle-specific T-harness | Note: This harness will not work by itself. You must also have an Idatalink Maestro Interface Module (ADS-MRR, ADS-MRR2 or ADS-MSR) and a Compatible Vehicle-Specific T-Harness. The ADS-MRR or ADS-MRR2 will require the "HRN-HRR" series T-harness for . (It MUST be the Head Unit Ready "HRN-HRR" version, NOT the HRN-RR one.) The ADS-MSR will require the "HRN-SR" Series T-harness. Sold separately.

USB adapter cable for select Honda, Subaru and Toyota vehicles 2012 and up. | Converts the factory USB port cable into standard full-size male USB so it can be plugged into an aftermarket radio. | In addition to the ACC-USB2, you'll also need a vehicle-specific radio replacement interface, wiring harness, and dash kit. Other install accessories may also be required.