Perhaps this photo attached will help

back side of the dash showing the bottom of the a pillar
The blue wire is likely a replacement for the cab light wire and you can see the factory wire clip that’s would have held the original cab light wire going up into the pillar
-s
Attachments
IMG_0989.jpeg (15.92 KB, 56 downloads)
IMG_0989.jpeg (259.11 KB, 51 downloads)

Last edited by 2ManyTrucks; 11/30/2023 2:13 PM. Reason: Higher resolution photo