rear interior Qs (car phone cable? and headliner)
 

sooo i was cleaning the rear seat today and noticed the rear driver side panel was loose, i tried to push it back on but it wouldnt go, so i reached behind it and pulled out a mystery cable! was this for the car phone? i'd like to cut it out or figure out its routing so i can remove it and button the rear panel back up...

also the headliner is sagging because the connecting rod or whatever is up under the roof must have broken off at the ends. can this be repaired somehow, or does the entire headliner have to come off and be glued back on?

81 300D