I don't see why the bluetooth capabilities of the TCH wouldnt work with any bluetooth capable phone, as well as any bluetooth capable add/on nav system(some of the aftermarket nav systems are selling bluetooth enabled, allowing you to hear the directions through the bluetooth enabled car speakers). Bluetooth is a very flexible technology. You can usually pair with anything thats bluetooth enabled, depending on the devices and what you are doing (dont try to send your car a picture, for example, LOL). But anything that involves the use/transmission of audio should work. This is the reason I did not get the nav system. I will buy a 700.00 gps unit that is bluetooth enabled and save 1400 dollars, and basically have the same gps capability(without paying a update fee for updated toyota maps )