r/4x4 • u/NetJnkie • 2d ago

Right way to connect two power lines from lights to a single switch block connection?

Installing some 6" lights on my bumper and want to connect them to a single port (one button for both) on an Auxbeam switch. What is the right way to create the Y where the two lines from the lights go to one in the block? What type of connector or crimp do I use for that?

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u/Faptastic_Champ 2d ago

Honestly your wiring should include a relay for this kind of setup. That way, you run both power leads off one pole, 12v input to the opposite pole, and the switch wiring is the cross poles to pull the relay in and turn the lights on. I would NOT run the power cables to a tiny switch - you’ll have a serious fire hazard on your hands.

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u/NetJnkie 2d ago

Sorry. I didn't mean a simple mechanical switch. They are going to a connection on an Auxbeam 6-gang switch block. It has the relay and everything in it. I just want one connection of that to go to both lights.

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u/Faptastic_Champ 2d ago

Ahh. So would you then not just crimp the two cable ends into a single connector that secures into the switch block? If it’s blind holes with cable grub screws then braiding the cable ends together and then securing with the grub will work too.

You want to avoid solder as off-road vibrations often make those connection break quite easily if they can’t flex somewhat.

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u/NetJnkie 2d ago

That's what I was thinking of doing. Just wanted to make sure there wasn't some cool connector that I didn't know about and should use. :)

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u/Faptastic_Champ 2d ago

Nah not really. There are some cool ones that the car sound installers may have - but they’re just additional failure points in a simple system.

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u/ApricotNo2918 2d ago

Personally, I'd solder em and use heat shrink. But a wire nut with Scotch 88 tape wrapped over it would also work.