TY1A-RS enables the installation of an aftermarket radio while retaining the factory steering wheel control functions and maintaining the functionality of the factory JBL or JBL Synthesis amplified audio systems, USB port, and 3.5mm aux jack. Key Features Multiple vehicle connectors and necessary firmware offering the broadest range of vehicle coverage Real-time and programmable speaker fade function Direct USB in-field updatable Provides: On-board 10 amp ACC 12 Volt output Illumination VSS Parking brake Retains These Features Steering wheel controls (SWC) JBL and JBL Synthesis amplified audio systems 3.5mm auxiliary audio input USB port Included Radio replacement interface Vehicle connection harness Radio connection harness 2x USB retention harnesses OBD-2 connection harness Antenna adapter COMPATIBILITY NOTES Toyota Avalon: Only compatible in vehicles equipped with a JBL system Not compatible in Lexus vehicles equipped with factory navigation Does not retain Rear Seat Entertainment