How to loosen headliner

[clk320x]

how can you loosen the headliner on the Clk just enough to nudge a cable in as I'm rooting my cable for my micro USB
I managed to get off the A pillar cover and route the cable that way
However I can't get it from the a pillar into the top of the headliner as there is no slack at all
Do I need to remove the sun visor screws to get just a tiny bit of leverage?

Abs

 

[clk320x]

When the 2 sunvisor screws are removed it allows enough leverage
Thanks to Killerhertz

Thanks

 

[Lit91]

Looks like all is sorted now, but for future reference, I think it is held in position with some sort of tension belt either side, this can be loosened, the tension mechanism is behind the back pillars from memory.