Roof cable stretched?

[MC12]

Hi Guys. Went to take the roof of my Tuscan and the pin on the drivers side would not retract fully when the handle in the boot was up. Managed to get the roof off, assumed it was just stuck but after lots of WD=40 and lots of manipulation it still will not retract fully although pin does move freely when the boot handle is raised and lowered.
Now left unable to get the roof back on properly. Certainly wouldn't drive it like that so guessing it's a weekend of top down fun for me (it's a hard life isn't it ).
Anyone got any suggestions? Has this happened to anyone else's Tuscan?