As I mentioned in another thread, for a possible source, go to coastaletech.com and follow the links to
http://www.coastaletech.com/04prius.htm They have many mods for EV only mode, full-time power to the front 12V outlet, backup camera, and more. They are working on an iPod interface (they have pics of their beta tests). Yes, these are for the Prius, but I called and they are working to see if these will work on the TCH. They may be encouraged to work on this faster if we can guarantee them several orders.