installation of courtesy lights under the door

Feb 22, 2022
26
9
hi, I would like to install the lights under the doors that turn on as soon as the doors are opened; I am having difficulty with the rear doors in which the control unit is absent. I should get the negative signal from the door switch and the positive from the direct 12+ of the window motor but in the switch plug, I can't find which cable could be the negative of my interest
 

Attachments

  • 1EC19271-C81E-41AF-92C9-7695E11941A9.jpeg
    1EC19271-C81E-41AF-92C9-7695E11941A9.jpeg
    72.2 KB · Views: 33