When I had my last MK2, got a decent ice install done by a local lad who is no longer trading but, the point is, he mentioned that putting the speakers in the door caused the door to resonate and distort the quality of the sound. He fitted aftermarket enclosures that fitted in the footwell area - anyone ever heard of them or know where I can get em?
The sound was terrific but this was about 8 years ago so not sure if they are still available!