NewSense wrote:
@ Krisz - I usually use a mini-antenna connection board that originated from an A1107, but the board from an A1104 or A1010 (Apple part # 922-6074 or 922-5721, that I have previously bought from PowerBookMedic USA, and/or eBay, should be sufficient to connect the Airport card to this board.

I seem to remember that the PCIe G5 towers have their antennas built-in behind the vertical plastic panel on the back of the tower, and that there are aerial/antenna wires and connectors already attached to the aerial/antenna panel ready for connecting to a Runway card, but these can be adapted to the external aerial connectors as suggested by koszer, or modified to connect to the pre-existing aerial wires inside the PowerMac PCIe models, which I seem to remember is how I did it with the previous tower that I connected up successfully to an Airport Extreme card. You may have noticed that I also mentioned that if you are able to have a Dual-boot Mac OSX system then you can utilise the Bluetooth pairing to use an already paired Bluetooth device with MorphOS, which is what I did with an Apple A1016 keyboard. Most Bluetooth USB dongles that work with Windows XP should allow this functionality. Hope this helps.