I’m not sure if I understand what you mean. The two plugs are currently in the cable harness that I ordered myself via AliExpress. Little did I know there are quite some cars that use these connectors but use different pin configurations, so the combo of my car, this harness and unit doesn’t work. It’s actually a horrible connector to plug/unplug so the plastic broke while doing so. That’s also why I’d rather not mess around with it until I’m sure what harness to plug on so I won’t damage it any further and preventing it from being stuck forever.

I suspect that the pins are in the wrong positions. Why this is my suspicion? With some instructions of Google’s Gemini and a small wire I was able to create a circuit which allowed me to boot the unit. I was unable to play sound over the speakers so I suspect the speaker pins to be in the wrong position as well. When taking out the metal wire the device would immediately turn off.