Sunroof and water in drivers footwell

Hello guys, so ive got a big problem, ive got like 2 litres of water in my drivers footwell, the whole soundproofing and carpet are soaked wet with water after heavy rain. Ive got this problem for 1 year, its always been little bit mois but not so much like after yesterdays rain !. I think the problem is with the panoramatic sunroof drainage.  I want to check it out but i cant find the opening of drainage hose. i cant seem to find it around the doors and when i try to pour water into my sunroof its getting out from behind the wheels. Do anyone of you know where it is and where should i check for the disconnection or something ?  Thanks.

Edited 13 August, 20178 yr by safire