Very frustrating. I tore the car apart and still can't find the Sirius tuner. Also, the converter/XM tuner from Terk has been discontinued and it appears there is no solution to this problem. I've been to three Ford service depts. and NONE of them can tell me where the Sirius tuner is. So, for now, I have an XM Xpress hooked up. I was able to run all the wires under the center console and into the storage bin under the arm rest. There I can connect through the "SYNC line in" connection. The magnetic antenna mounts real nice on the roof just behind the factory antenna. The line tucks into and runs in the channel of the rear window and into the trunk. From there, I ran the line behind/under the rear seat, up to/under the driver seat, and into the center console. (I tried leaving the antenna in the rear window on the rear deck but had too many reception breaks) The good news is that the Xpress unit has more features than the factory radio has for Sirius. I'll post picts for anyone interested. :headspin: