Step 2 crawl underneath the vehicle and locate the wiring that runs to your taillights.
Leer truck cap third brake light wiring.
Also check with the laws of your area if third brake light is allowed legally.
A positive and a negative down to the driver s side of the back of the box where the taillight area is.
Just follow the wire the way it runs through and locate its actual point.
I am looking for advise on how to best wire the led 3rd brake light on a leer xq100 cap.
Jan 19 2016 5 36pm.
Pop the hatch on the shell and locate the wiring for the third brake light.
To this you will need to solder and fasten a connector that can be quickly disconnected in.
In most areas third brake light is declared illegal and you can face legal difficulties if you wire the reel truck cap without knowing it.
One would think this would be simple slice into rear brake light wire but given the led brake lights i ve heard.
Although they re easy to install and bolt onto your truck the wiring process isn t always as straightforward and making sure the third brake light is.
Installing a leer truck cap on your vehicle adds security to the items stored in the bed as well as a distinct look that accents the body of the vehicle.
Locate third brake wiring after popping the hatch.
I have a 2016 sierra slt with the led light package including tail brake lights.