Crux SWRTY-61J Radio Replacement Accessories Retains factory Features in select Lexus, Scion and toyota vehicles with JBL harman-becker digital-synthesis amplifier, including JBL (pioneer-made) amplifiers. Pre-programmed to retain factory steering wheel controls. iPhone voice recognition (VR) Feature from SWC on select Kenwood, Pioneer, Alpine and C radios. Variable audio gain adjustment to level match the aftermarket radio and factory amplifier. Retains OEM 3.5mm auxiliary audio input.