Wet Middle Row Seat Belt On Drivers Side

[bodgerd]

Hi, please can anyone help?

I have a late 2009 Galaxy Ghia and recently have noticed that the drivers side middle row seat belt is very wet after any rain. It has started to smell, so I tend to keep it clipped into the buckle of the middle seat, to effectively keep it from retracting back into the rear trim area.

The carpet doesn't seem wet, and I noticed the seal that runs down the rear side pane of glass (when looking from the middle door perspective) was not pushed tight under the glass at top and bottom, so have resolved this, but the water is still getting in.

Is this likely to be coming in through the "roof tracks", through the petrol filler area, the door seal, the rear window seal, or somewhere I haven't thought of?

Any suggestions or help in knowing how to remove the rear "trim" (i.e. if you were sitting in the very rear seat on the drivers side, the trim would be against your right leg).

My car is often parked on a driveway where the front of the car is lover than the rear - in case that is of importance!

As you can hear, I'm not particularly technical, but keen to get this sorted :).

Many thanks