So I can't hear myself think when I'm driving the van.
We used some cheap flash band type material to try to shut it up.
Here is how we got on.

Replacement door panel clips:
https://www.ebay.co.uk/itm/20xYellow...

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I have to warn you that I have no formal automotive training, and have just learned by breaking stuff. If you can learn anything from my mistakes then great, but you do so at your own risk!