Sunroof drain holes

[NADP555]

The carpet in the footwell on the passenger side is wet. Sliding back the sunroof reveals water pooling in the gully.  There are drain holes either side.  Water is pooling on the passenger side, so I am assuming this to be the problem. I've carefully pushed telephone wire down the hole with no obvious resistance.  I've managed to get 77 inches of wire down before I meet resistance. Has anyone any idea where the outlet is for this drain pipe?  Thanks in advance

[furtula]

Take some water and pour it down the drain hole that is not clogged, it should help identifying the location of drain hole.

Drain is usually just behind the front tires, towards the door.

[NADP555]

Go idea, many thanks, will try that. 

[FROSTYBALLS]

Why not try blowing compressed air from a forecourt tyre pump down the drains.