As mentioned above, have both these units and would love them to work together although I know the NAVI is a stand-alone/OEM interfacing unit. I'd like all the amenities provided by the F500BT such as Bluetooth, USB, etc, but I cannot come up with a viable solution to get them to work together. Basically, if I had the stock (subpar) HU, I could run the NAVI through my system; since I have a Pioneer aftermarket HU, I cannot get the NAVI to play through it. Seems a common theme for Pioneer to "pioneer" ways to get more $$ from us and not have their products easily assimilated to one another! I t
