I have new-to-me Mac Pro2,1.

You need to install Airport Extreme card as well as bluetooth card.

http://guides.macrumors.com/Adding_Bluetooth_and_Wireless_to_a_Mac_Pro

The WiFi/Bluetooth module was optional in that model, so first you need to find out whether it is installed.

Aobout This Mac > (More info) > Network

should show you a list of what Hardware you have.

You could try this:

http://www.amazon.com/Apple-Airport-Extreme-Wireless-Upgrade/dp/tech-data/B0012Y YITW/ref=de_a_smtd

You could try this as well for bluetooth:

http://www.amazon.com/Kinivo-BTD-300-Bluetooth-3-0-adapter/dp/B005Z5HT2M/ref=pd_ cp_pc_2

here-try this

you'll need steady hands, though

http://www.xlr8yourmac.com/systems/Mac_Pro/Bluetooth_MacPro_install/Bluetooth_Ma cPro_install.html

and

http://meanderingpassage.com/2007/07/18/how-to-installing-an-airport-extreme-car d-in-an-intel-mac-pro/

hope this helps you. As a temporary workaround, you can buy a usb to Bluetooth adapter, plug it in and it should work okay. I think iogear 421, but not sure

good luck

JB