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2014-159 HR in CT
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Wiring for replacement cargo lights:

Triggered off slider or back door open or by a switch. If you want to be able to control the lights and function as the factory cargo lights do, then buy a SPDT Center OFF switch. Locate it where convenient. Wire as per this diagram:

68803


You can wire to the connector over the slider or to the connector over the rear doors. This switch and light setup will REPLACE the lights that came with the van.

To add light to the existing cargo lights and have 'em act like the existing ones, you would have to solder wires to the tabs where one of the light bulbs is clipped in, and be sure to observe + and - for LED lights.
 

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Wiring for replacement cargo lights:

Triggered off slider or back door open or by a switch. If you want to be able to control the lights and function as the factory cargo lights do, then buy a SPDT Center OFF switch. Locate it where convenient. Wire as per this diagram:



You can wire to the connector over the slider or to the connector over the rear doors. This switch and light setup will REPLACE the lights that came with the van.

To add light to the existing cargo lights and have 'em act like the existing ones, you would have to solder wires to the tabs where one of the light bulbs is clipped in, and be sure to observe + and - for LED lights.
 

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Hello, Im not able to see or find the diagram you mention for wiring the SPDT switch to the factory cargo light over slider harness. Is it still available?
Thanks
 

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'16 2500 159 HT Granite Window - OH(io)
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I added a bunch of LED hockey-puck style lights in the ceiling and under the overhead cabinets. The ceiling lights have individual rocker switches so the can operate from the doors or by themselves. I also incorporated a couple of dimmers, one for the ceiling lights, one for the under cabinet lights. The attached diagram is pretty complicated, and not for the faint of heart. :) :rolleyes:
LED Wiring.jpg

The fuse looking connections on the right come from the existing wiring for the door operated factory lights. Also, not shown on the diagram, the orange wire(s) are connected to a +12 volt always on fused source.

DSC01808.JPG

DSC01875.JPG
 
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