Continuity on MacPro 4.1 w/Bluetooth Dongle

[fstop65]

I have a 2009 MacPro 2.93 Ghz, (4.1) running Yosemite. According to the CAT charts, I should able to activate Continuity with either a Bluetooth 4 Dongle, or adding a new updated Airport card. When I run the tool, it halts at "Plug in a USB Bluetooth 4 dongle to add support, which I did, and tried 2 different IOGear dongles, both of which worked on my MBP to activate continuity... ) Does not seem to even see the dongle. This Machine was a CTO, and does not contain a built in Airport card. Safe to assume I need to install this too?

Thanks in advance!
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[flowrider]

This:

http://www.macvidcards.com/store/p33/Wifi_AC_and_Bluetooth_Airport_Card.html

Lou