Help finding a Boxer/Ducati/Relay rear door ventilation adapter

[Nutter]

Hi, I'm trying to find an adapter that allows the rear door on my Peugeot Boxer conversion to be locked slightly open for increased ventilation in hot weather. A friend has one for a Sprinter as seen in the photos below but so far I can't find one. Any help appreciated.

 

[Jev88]

Hi, I'm trying to find an adapter that allows the rear door on my Peugeot Boxer conversion to be locked slightly open for increased ventilation in hot weather. A friend has one for a Sprinter as seen in the photos below but so far I can't find one. Any help appreciated.



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Maybe something like this? https://www.amazon.co.uk/dp/B0DC6Z6BG8?tag=mhf04-21