Could someone please explain to me how to wire up some LED bed lights that come on when the cargo light comes on (like when I unlock the truck)? I tried to today but they aren't working at all. I ran the positive to the black wire on the cargo lights (I no black is usually negative but the other 2 wires on the lights were striped so I assumed that those were negative and something else). The ground from the lights ran straight to the ground on the battery. I tested the lights sting before before I tried to wire it up and it worked fine. Could someone please tell me what I did wrong?

Thanks

 

Buy a test light and multimeter before you burn something up. Please.

Those two tools will be handy with any electronic wiring you ever do.

 

Black isn't the right wire. And on these trucks most stripped wires a positive. Get a dmm like tackle suggested or search.

 

I have done research on it there just isn't much out there on it. And how do I use a test light and what does it do


Thanks

 

Do you guys no witch one is the positive wire?

 

Blue and black I think. It's in one or my thread.

 

Thank you ill update tomorrow

 

To use a test light in this case:

Strip back the wires a bit and put the clamp end on a bolt, the frame, anything metal that can ground. Then take the wand end and touch a wire. Open the doors so the cargo light turns on. If the bulb in the test light lights up, you have the power wire. If not, repeat on the other wires until you find the positive.

 

Thanks for all yalls help. I got the lights working today! I'll upload some pics later

 

Camera don't do them justice. They are pretty bright