So, I bought and installed a Bluetooth card in my Mac Pro 1,1... However, all of the labels fell of the antennas so I have no idea which one to use. I tried them all and they all perform exactly the same. I don't see any connection problems, but how do I know I have the right antenna? Does it matter? Right now I have it plugged into the longest antenna and it seems to give me a -55 to -65 signal from my Magic Mouse 2. My tower is under my desk if that helps.