Update (as posted separately elsewhere):
A Mobile Tech came again this morning, took about 30 seconds to mount the module, using the supplied bracket and screw (it is tricky, screws in from the front but you do not/not need to remove the front fascia to make it happen), jack in his laptop to force the update and establish comms with the mothership. I then let the car sleep for about an hour, turned on, did a force reboot (foot on brake, pushing in on both steering buttons until the Black Screen of Reboot), and Home Link was on display ready for programming. Works perfect.
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