I could not get the antenna adapter cables to mate with the WiFi card. I may have the wrong size of U.FL adapters for this project. The HiRose U.FL catalog shows five or six size options. Any idea on size required for the antennas on the various aluminum iMac models?
IT'S ALIVE!! Have not yet upgraded the WiFi, but Bluetooth and the rest work fine! Wifi drivers are the bane of tinkerers... I am kicking around and update that uses the Broadcom binary blob method used by Linux. Not expecting easy fix, but maybe. I've done worse before.