Hi, Ive found a new problem where theres water leaking in behind the glovebox on the passenger side when it rains. Ive removed the cowling and wipers infront of the windscreen and removed the glovebox. When you run water down the cowling it comes runs in from behind the heater motor. Ive cleaned out the drain hole at the very bottom of the wing which was clogged and I was reading that it could be the drain hose blocked for the heater vent. Where is this hose as I cant find it at all?

Thanks Nick