Amazon has several Tyto-01's that come up when you search, but none seem to say that they are compatible with 2009 Prius (w/ JBL/Nav). Any ideas? Can I use the one for 2003-2008? I plan to buy all of the parts, harnesses, etc. as part of my quest to find someone in San Diego to install an aftermarket stereo. My impression from these forums is that Tyto-01 is needed. Thanks for your help!