08 dodge sprinter park light

Did a 2008 Sprinter alarm with a CAN SL2 module.Alarm works except for park lights.The info i had for park light was gray/red and gray/black at bcm.These wires are at bcm and only turn on the front left and right park lights,does nothing for rear ones.Does anyone have any info for all four or do i have to find two more wires ,use four 6amp diodes for the install. Thanks

I just read that at the BCM there is a Gray/White in a brown 24 pin connector, pin 13 that is negative parking lights.Installer, IT support, and FFL. I need less hobbies.