Trusted by Riders for Nearly 25 Years.
Delivering premium lighting designed for maximum performance, simple installation, and years of dependable riding.
Trusted by Riders for Nearly 25 Years.
Delivering premium lighting designed for maximum performance, simple installation, and years of dependable riding.
Select your ride! Suggested fitment for U.S. models only.
CD-JAE-EXT
Fitment for U.S. models only, unless otherwise noted.
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Custom Dynamics® offers a variety of plug and play motorcycle LED lighting products that include a in-line adapter which plugs into the motorcycle's main wiring harness with pigtails for connecting the lighting product. There is typically a single connector for the left side and a single connector for the right side units providing plug and play installation for one product. When installing more than one Custom Dynamics® LED lighting product, the adapters included with each product would be daisy chained together and ultimately taking up more room under the seat.
This Extension Harness acts as a splitter to convert the single left and right connections to 3 connections on each side allowing for the plug and play installation of up to 3 Custom Dynamics® LED lighting product, saving the space of two in-line adapters that would otherwise be required for that number of products.
Extension harness is compatible with Sequential or Dual Color, plug and play products with 4-pin JAE accessory ports including Dual Color LED Fascia Panels for Harley-Davidson®, Dual Color or Sequential Low Profile Saddlebag Lights & Sequential ProBEAM® BAGZ™ Saddlebag Lights (in-line-adapter included with each product).
Also compatible with Plug & Play Dual Color Plasma Rods™ and corresponding Plasma Rods™ Wiring Adapters for use with Dual Color Plasma Rods™.
Not compatible with 3 wire, dual intensity plug and play products with 3-pin accessory ports. Additional Wire Extension Harness available for 3 wire dual intensity products.
Warning: Cancer & Reproductive Harm — www.p65warnings.ca.gov
Extension harness is compatible with sequential or dual color, plug and play products with 4-pin accessory ports including LED Saddlebag Lighting or LED Fascia Panels for Harley-Davidson® (in-line-adapter included with each product).
Also compatible with Plug & Play Dual Color Plasma Rods™ and corresponding Plasma Rods™ Wiring Adapters for use with Red Plasma Rods™.
Not compatible with dual intensity or standard 3 wire plug and play products with 3-pin accessory ports.

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The Ext kit works perfect. A must have addon.
It was perfect for what I needed to take care of. Thanks
Brilliant piece of kit? Cuts down the under seat wiring
I am a long time CD customer. When I purchased my new CVO Road Glide I added quite a bit of CD lighting products. I realized early on I needed to clean up the under seat connections as I was adding numerous CD products. Customer service talked me through getting this harness to clean up some of the redundant daisy chain plugs under the seat. Made it very neat and manageable as I had rear plate lights, bag lights and side marker lights
have so many custom dynamic lights on the back of my street glide. i created a wiring mess under the seat. these worked perfectly to clean up the mess. customer service was top shelf. great products.
They sure work great for less wiring under the seat for sure. make things so much easier.
The harness did a great job of removing several connectors and made it easier to dress up the area under the seat. Excellent product.
After installing 12 different Custom Dynamics' LED applications, I quickly discovered that you have a much less room to hide the plug-n-play connectors. The splitter harness worked wonders to remove several connectors and made it easier to dress up the area under the seat. Excellent products, just need a Magic Strobe.
These are quality made splitter harnesses. And they help get rid of the clutter under your seat when adding a bunch of accessory lighting.
These are a great idea. When you add a lot of accessory lighting, it get congested under the seat from all the adapter harnesses. This feeds 3 sets of lights from 1 harness. I love mine.
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