View Full Version : Wiring LED Cargo Lights

02-16-2017, 08:32 PM
Hey guys,

I have a 2012 170wb and want to add some extra lights to the cargo area. I plan on using 6 of these lights: superbrightleds 3-led-dome-light (https://www.superbrightleds.com/moreinfo/led-dome-light-fixtures-non-waterproof/round-led-dome-light-fixture-3-led-dome-light-w-30-3528-leds-pigtail-connector/1281/2957/)

Is it possible to tap into the existing lights wiring without any issues? I don't plan on using the oem lights anymore. Also should they be wired in a series or a parallel?


02-16-2017, 10:13 PM
Don't do it. The existing lights are CANbus controlled and you run the risk of weird electrical gremlins from modifying the stock electrical system.

Run new wires. Use the "body builder terminal" under the driver seat if you need to draw power from the vehicle battery.

The lights you linked to are 12V so you're going to want to run them in parallel.

02-16-2017, 11:48 PM
Great! Thanks for your help.

sleeper bird
02-17-2017, 12:08 AM
I added led lights in my cargo van a year ago with no weird things going on,iv got a 2008,that way they work like the factory lights.

02-17-2017, 10:09 AM
I've got 16 led mr 16 in my van - all used to be on stock light wiring however I ran into some issues. There is no rhyme or reason on how long they would stay on. Sometimes for a few minutes and sometimes a few hours. One thing was certain they never worked when you wanted them. So I now have basic light switches and all but 4 lights are run off heir own solar charged batteries in zones all with their own switch. Even added some - six - mr 16 rgb down lights for mood and easy use of a remote for on / off / function. I've got a few RF remotes with controllers for simple 12v on / off / dimming but have yet to install them

02-17-2017, 01:53 PM
Would one of these work to tap into the fuse box under the seat? MINI ATM Fuse TAP (http://g04.a.alicdn.com/kf/HTB17Z8EHXXXXXbAapXXq6xXFXXXG/MINI-ATM-Fuse-TAP-Add-On-Dual-Circuit-Adapter-Auto-CAR-Terminal-15A-Wholesales-Mini-Dual.jpg)
Then ground it to the body?

02-17-2017, 03:29 PM
I installed LED right to existing wiring on my 2015. No issues. Went to IKEA and got all the LED's I wanted and CHEAP$$$$. Just make sure when you look at the box the light is in the out put is 12VDC. cut the Ballast off and you wire direct in. Truck is LIT BRIGHT!

02-17-2017, 04:05 PM
Would one of these work to tap into the fuse box under the seat? MINI ATM Fuse TAP (http://g04.a.alicdn.com/kf/HTB17Z8EHXXXXXbAapXXq6xXFXXXG/MINI-ATM-Fuse-TAP-Add-On-Dual-Circuit-Adapter-Auto-CAR-Terminal-15A-Wholesales-Mini-Dual.jpg)
Then ground it to the body?

No need for a tap. There's a body builder terminal under the seat for you to draw power from. Adding an inline fuse between that and your lights would be best practice.

For connector location, see:

Ground to body, yes. There are two factory ground studs under the front of the driver seat box that you can tie into.

02-19-2017, 03:57 PM
Hi Moto67,

I ran 3 3W LED lights off the existing light wires and wired 6 more 1 W LEDs on their own circuit off the relay switch under the divers seat (via a fuse box). I like the fact that some lights come on when the slider and rear doors are opened. The lights connected to the existing wires operate just as before turning on and off soon after the doors are closed. I am grounded to the chassis. No problems or weird glitches.