X5 F15 sunroof drain tubes

[V8 Animal]

Hi,
Both my front drain holes to the roof are blocked.
Tried various wires to try poke the holes but nothing works.
Anyone successfully unblocked these and with what.
Spent a hour underneath car took wheel off and wheel arch covers but couldn’t find tube I guess hidden in the wing ffs.
Thanks

[74merc]

Samcrac on YouTube has a series on an X6 with a leak from the sunroof amongst other things. Worth a look.