Skip to content
Welcome ! Please let us know if you need any help. For other T-harness options please visit T-harness.com. Thank you
Welcome ! Please let us know if you need any help. For other T-harness options please visit T-harness.com. Thank you
Text/Call (602) 320-7004 Email: Support@lljcustoms.com

Our products are NOT sold at any AUDIO SHOPS or online retailers, however knock off copies are, be aware dont pay more for less. Stay authentic 👽... Instock product ship the following business day!

Features built in to our OG 2.0

Our one of a kind systems don't just work great, they make you feel great! Knowing you're purchasing a product that can be used again with the simplicity of a Base Connector change, means you can invest once and get your moneys worth! Not to mention the quality of our hand-crafted kits give you and experience you can feel and hear! ELITE HARNESS SYSTEM

An Expanding system

The first of its kind. Our GX500 kit aimed to fill in the gap that big industries simply ignored, and that was the customer that wanted just enough to make it sound great. Yes some companies made "factory upgrade kits" but none had the ability to add any aftermarket mono amp and that's what the people wanted so we delivered!

The Original!

Its like the secret sauce but better 😄. Knowing our customers will receive a product they will be proud of, drives us to partner with the best. If our product will outlast your car, so should the products that go along! We want you back every 5 years not every 3 weeks 😉 Quality doesn't mean expensive!

Wāvtech Tech
KICKER KEY GX200.4Pluse Elite S.I.K Audio Harness Kit
KICKER KEY GX200.4Pluse Elite S.I.K Audio Harness Kit
KICKER KEY GX200.4Pluse Elite S.I.K Audio Harness Kit
KICKER KEY GX200.4Pluse Elite S.I.K Audio Harness Kit
KICKER KEY GX200.4Pluse Elite S.I.K Audio Harness Kit

KICKER KEY GX200.4Pluse Elite S.I.K Audio Harness Kit

SKU GX500-EHS-Kicker
by LLJ Customs Car Audio Fabrication
Image 1 Description
  • An LLJ original creation 1st in the world
  • Abrasive resistant loom
  • Hand crafted from the ground up in the USA
  • Shock-Wire© EMI blocking twisted speaker pair
  • OFC power wire with 20 amp inline fuse
  • 100% copper wire
  • LLJ Elite system expandable design
Sold out
$520.00 USD - $520.00 USD
$520.00 USD
$520.00 USD - $520.00 USD
$520.00 USD

At LLJ Customs we aim to make out T-Harness and Loopback Harness as multi-purpose as possible. That is why we invented the Elite Harness System. This system allows you to add all levels of audio upgrades to your factory system. That has never been and still is not possible, with any other product on the market. Unless, of course, you are willing to re-buy unnecessary parts when you change your vehicle. With that being said our Elite System allows you to scale your system, based on your current needs. This means you do not need to invest a ton of money, without gaining the experience. That is why we created additions like the GX500 and FS1000 SIK Kits. Taking the guess work out of the equation by pairing our industry leading harness platform with industry leading equipment such as the Kicker Key.   

The Kicker Key is a smart, self tuning DSP/Amplifier. By placing the included microphone where you would like the acoustic energy directed, you can have a great sounding system installed in minutes. Our harnesses have built in load resistors to make sure they meet all factory requirements. The harness design also includes an Auto Turn On trigger, the ART, that uses the AC voltage in the factory speaker, audio signal to turn on and off the harness. Along with that remote, we offer an accessory remote leg (output wire) that is good up to 1.5 amps of draw. You can use this to power accessories such as LED strips, other amps, etc. 

Our harness uses our twisted pair, electro-magnetic blocking ShockWire. You also have the option to add a 2 channel LOC (the LinkDQ) for adding your existing or new, subwoofer amplifier. We offer our Kicker power kit, this is a double twisted 16awg for power and ground, to mirror the Kicker Key factory harness. Comes loomed and pre-terminated with an iP 67 rated, quick release Dutch Connector. 

The kit does NOT come with a Base Connector included. Please be sure to add the correct Base Connector to your order. 

Kits are pre-made, add-on options take about a week to add, and run through testing for 48 hours before they're sent to shipping. 

 

Installation Video YouTube


  • The Kicker key GX:500 kit is compatible with all None amplified base connectors.(4ch base connectors only)
  • 6-8ch Base connectors require a adapter to work. Ask before purchasing if you plan to use this with a Bose system.

LLJ S.I.K- GX:500 kit

Introduction to the first ever GX:500 system