Only one of my speakers is working but as far as I can see to access the faulty one (driver side) it requires the entire piece of plastic, going accross the whole width of the car below the windscreen and down the other side to be removed. Even with the visible bots undone though, I cannont get the plastic infront of the speaker to budge more than about 4cm so can't access the speaker! Do I also need to remove the plastic dash surrouding the dials behind the steering wheel?

Thanks for any help