How do I install Bluetooth module on i Mac G5 17 " 1.6Ghz M9248LL/A 2 GB Ram

How do I install BlueTooth Module in 2004 i Mac G5, 17 in, 1.6 Ghz, 2GB Ram, M9248LL/A. I found one to buy on ebay for this I Mac G5 model for about $13 and before I order I wanted to know if anyone has installed Blue Tooth on this i Mac G5 model. The i Mac G 5 Guide shows how to install an Airport Extreme card for internet wifi and indicates that you can add Blue Tooth but not how to install it