Thanks for the info.
I've got the headliner cover off the sunroof itself and disconnected the cable attachment to the roof after getting the headliner panel off, just so I could open and close it by hand.
The roof was binding pretty good prior to the cable breaking and I have seen some info here on that, but nothing detailed enough so I can use it to replace the cable and fix whatever else needs attention.
I've been searching for a thread here that explains the step-by-step replacement of the cable and can't find one. Can you point me in the right direction?