Hi!
First post (of probably many to come) :)

I have a Linde E18 (Model E18L-01 year 2007), in which I'd like to connect a car stereo.
The problem is, I can't seem to find any good spot to connect it to the 12V- system without hijacking other functions wiring (lights for instance) There are some avaliable slots and connections (for switches) in the roof- panel (only have headlights and wipers connected there) but I'm not entirely sure where they go from there.
Can anyone guide me towards a wiring diagram for this panel or maybe help me understanding how it's wired, so I don't mess something else up?

There is also a white 4-pin connection behind a bigger lid below the slots I mentioned in the roof- panel.
Does anyone know what this is? -Couldn't get any readings on it with my multimeter..