Electric Vehicle Forums - Adding XM and Bluetooth to '06 HiHy

Hi ...

I have a '06 HiHy Limited AWD, with NAV w/disk changer. I want to add the above and have a few questions:

Has anyone added XM Radio to their '06 HiHy? I've been told that Toyota actually has one that can be added. I want it to still work with the steering wheel controls. Please share your advise/experience.
I need/want to add BlueTooth. When I do the NAV work around / override there is a place that says telephone. Does anyone know what that is? What it does? How to set it?
What about the other things that are exposed when you go to override? What do they do? Anyone have a 'manual' equivalent to these? That would be great.
1. Is there something on the back that allows Bluetooth to be added?
2. Lexus already has the bluetooth ... is this something that I can add to mine too?
Has anyone replaced their NAV system? I've been told that you CAN'T because ours is specific to the Hybrid. Advise?

Thanks in advance ...
DJ