Audio Systems: Add aux input to 2005 Sienna with JBL & DVD, sienna minivan, factory radio

Question
I have at 2005 Toyota Sienna minivan with the factory JBL stereo upgrade and the factory DVD system.  Currently the DVD sound can be played over the speakers with the AUX button.  I'd like to get a new stereo or upgrade this without loosing the DVD tie in compatibility such as playing the sound, and it being able to use the tuner when I'm not, etc.

Answer
sorry for the delay
keep the factory radio and use this interface it will give you
3 more aux inputs to the toyota radio and you also keep the dvd

http://www.oemautosound.com/pc-453-101-pie-x3-toy03-toyota-2003-2006-triple-inpu...

good luck