So I found the switch but all looks fine, but not really knowing what I'm trying to find here is interesting in itself. I just made sure all fittings that were able to come apart, fit tightly. I disconnected what could be done and reattached it again. So results, none, except when I use the camera manually from the radio, it all works, reverse and the side cameras, but when you switch to off so the radio will work, then still nothing works. It must be the module that does all the switching, just not sure what that particular switch looks like, as there are several modules back there.
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