Just got back from a trip, Jakg sent me this picture of his speakers in the new iso rings, so it seems that they do work for all speakers.
Seems to be a few that want the back set as well, I will make some over the weekend.
Just some answers to generic questions.
The pop marks in the pictures below are where I have drilled holes to screw the rings onto the doors. With self tappers(4x45). As I have said before,
there are wires behind the speakers, so be carefull where you drill!!!!.
The rings do go on top of the door insulation, and seem to find their own position, but double check by putting the plastic oem rings on top to confirm the position.
Put the wires under the rings before screwing them into place.
Check the post below for types/prices and PM me if you would like some, as I am back at school next week.
Craig