not at all clear what your confusion is, if you have wires with no ends they'd need ends added to suit your situation where you connect to the truck wiring or to the light

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics