Connect the wire from your switch to the power wires on your lights.
How to wire roof rack lights.
The cabling is run along the length of the roof attached to the roof rack or rail and in the case of a ute will generally loop across to either the sports bar or headboard of the tray itself and head down to the chassis rail then off to the engine bay.
Jeep cherokee roof rack install by the newerejk jeep duration.
While mounting a light bar on the bullbar is often easiest the roof mounted option is far more popular freeing up space on the bullbar for traditional driving lights.
If your lights do not have connectors included strip a half inch of bare wire from the end of each power wire using your wire strippers.
Although not commonly adopted it is possible to loop the wire from a roof light bar.
Some roof rack manufacturers may have optional light bar mounting brackets like this rola titan roof tray which makes installation as simple as spinning a few spanners.