Thank you John, that's good info. I thought the door card was one piece, not in two sections, so as you say taking just the lower section off only should give access if the issue is the rod connector.
I agree with the tie wrap mod, also a couple of stainless washers on the rod to spread the spring load.
I am fairly confident that the early to mid range MY Six use the same basic door design as similar year Fours.
If I find the issue is just an uncoupled clip then I will do the same modification with tie wraps etc on the near side.
The clip design seems easy to fail coupled with rough roads and associated body shocks.
