Is the harness there even if the lights were not installed from the factory? If it isnt, can you just buy the harness and plug it in? Is so where does it plug in, behind the light switch? Looking at one from a 95 truck and wondering if it will fit. Thanks.

 

If you don't have the cab lights, you will not have the harness.

If you want to install a set of lights, you could do what I did and buy the kit from Dodge and put them in your self.