The pursuit doesn't have interior dome light. Only a bit round light in the ceiling with a manual switch to turn it on/off.
The cool thing is that the dome can produce both white or red light.
As mentioned earlier I wanted the light to turn on when the door is opened. This is not enabled in a pursuit car for some reason.
To do that I found a signal in the right A-pillar that would give a high voltage when door is opened. I also found the power wire to the dome and merged the wires.