For a possible source, go to coastaletech.com and follow the links to http://www.coastaletech.com/04prius.htm They have what you are looking for plus mods for EV only mode, full-time power to the front 12V outlet, backup camera, and more. 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.