rear washer leak

[Alexthesparky]

Hi hope some one can help, have had a leak on my rear washer and think i have found where it is, between rear hear lining and as it goes along the rear boot hing.
I need help with undoing the rubber grommet and gaining accesess between the removed head lining strip and the hing.
Hope i have explained this well anough.

 

[NHN]

Man if its anything like the 8P, its a pita to remove/refit tbh, ideally heating the rubber would help, but has wires inside so care to be taken.