The PAC RP4.2-TY11 RadioPRO 4 radio replacement interface is designed for select Toyota, Lexus, and Scion vehicles, typically from 2004-2019. This module allows for the seamless installation of an aftermarket radio while retaining crucial factory features. It ensures the continued functionality of your vehicle's steering wheel controls (SWC), enabling you to manage your new stereo without losing convenience.

The interface is compatible with both non-amplified and factory JBL and JBL Synthesis amplified audio systems, offering real-time and programmable speaker fade functions. It also retains the factory 3.5mm auxiliary audio input and provides essential wired outputs for navigation radio installation, including vehicle speed sense (VSS), parking brake, and reverse gear outputs.

Additionally, the RP4.2-TY11 provides a 12-volt 10-amp accessory power output, which is often missing in Toyota/Scion/Lexus factory harnesses. The module features direct USB in-field updatable firmware, ensuring compatibility with future aftermarket radios and vehicle updates. Optional PAC harnesses (USB-TY1, USB-TY2, CAM-TY11, CAM-TY12) are available separately to retain the factory USB connection and backup camera.