[Oldsguy]

Hi lars, welcome to the site. I saw your question yesterday but held back from replying because I don't want to monopolize all the posts. But I hate for anyone's questions to go unanswered, especially new people. I really don't have a specific answer for you. My initial guess would be if you can get the back door interior panel off it would give you an idea of the mechanics of the whole thing. I am sorry for the feeble attempt but nobody should go without even a "how do you do".