Audio Systems: non-interface connection, toyota aux input, toyota interface

Question
Regarding 2005 Toyota Sienna with base stereo system and no-NAV system: Can I make a connection to my stereo for an iPod/aux that is NOT an integrating user face connection? I am not interested in being able to control the iPod from the steering wheel and just want an input, just a cable connection or even splicing-in a connection. Can it be done and is there something commercially available? Thx.

Answer
There is a plug on the back of your Toyota Sienna radio that is free, this plug is to be used with the external toyota CD changer or the rear DVD system, you can add an auxiliary audio input interface to your Toyota radio, this adapter is made to work with Toyota radios only so its not universal or FM  to listen to your iPod just press the disc or cd button twice  

Toyota aux interface