Re: Aftermarket HU and Factory BT?
I recently replaced my OEM head unit in my EX. I did not have the OEM nav unit.
I had an EX non nav. The Bluetooth module is a separate piece of hardware. With the EX with nav I believe it is part of the head unit.
So the Bluetooth can be kept intact with a non nav car but you need to do some hotwireing to get it hooked up... There is a video on youtube and crzforums.com has a few threads that mention what needs to be done. Really though i would just use the bluetooth in the new head unit. Works just as well for me.