Ok this is a two part question. 1st off I have a 2004 Dodge ram 2500 5.7lt. I want to install cab lights.

My 1st question is. Are the wires already ran up to the roof or do I need to find a kit with all the wiring included down to the head light switch?

2nd? I'm looking for a led roof light kit that has a template so it will be easier to mount the cab lights. Any suggestions??