Has anybody experience any condensation forming in the passenger

Check the ventilation duct under the front seat in case that's wet.

Could well be a leaking front door seal or maybe the rear one.

Sounds silly but the water runs back through the car from the front and as the rear carpet is alot thinner it shows through there first. I would imagine one or more of your ancilleries carriers are leaking, very common problem easily rectified by your dealer.