Hi I've got a disco 3 metropolis and just got latest nav disc! Book tells me DVD reader is under front passenger seat and you have to move seat as far forward as you can and from rear seats get access to slot! Rubbish its wrong way round and you have to get at it from the front, problem is there is a plastic plate (probably to stop you kicking electrics with your heel) which I cannot pull off! Can any one tell me how to pull off the plastic plate please? Thanks John c.