[DannoXYZ]

I believe the behavior is correct for early 944. There are wiring-differences between the harnesses for different regions of the world. Which one was your eBay harness from?

The component that dictates the AND/OR logic of various lighting-switches behavior is the bridge adapter. Here are some wiring-diagrams with different configurations. First, you need to identify the configuration you have. Then pick the behavior you want and modify the bridge-adapter to generate the desired logic.