The best way to input digital audio from your portable iPod iPhone mp3 player into your Factory Toyota radio will be using an Auxiliary audio interface These aux adaptors are designed to convert the CD changer port of the Toyota factory radio or satellite port into auxiliary audio input. aux Devices such as iPod iPhone satellite radios Dvd, Mp3, canbe added to the Oem Toyota radio without the need of Fm modulation. or inferior FM trasmitters the Toyota auxiliary audio adapter will allow you to maintains all the factory functions of the factory head unit, these are not universal or FM transmitters they are made for Toyota radios only. Radio must have one of the following buttons CD DISC SAT XM works for most toyota radios from 1998 and up toyota auxiliary aux input If you own and iPod follow this link to our Toyota iPod interface connection kits, fits Avalon Camry Corolla Echo Matrix Highlander Land cruiser Celica Prius Rav4 Sequoia Tundra Sienna Tacoma Prius Yaris Venza If you need help finding the correct aux input adapter for your Toyota vehicleE-mailus or 888-231-0395Toyota Bluetooth Adapter