Elite T-harness system

Elite 4ch OEM Loopback Harness Accessory

Custom made to order product

Key Features

  • Abrasion resistant loom
  • Our Shock-Wire EMI blocking twisted pair wire
  • 300v PVC oil resistant jacket
  • Built in 10 amp Fuse for 12v+
  • Designed, Tested and Hand-built by us in the USA
  • Shock-Wire© EMI Twisted Speaker wire
  • 100% copper wire
  • Molex connectors
  • Labled and color coded wires

Starting at :

$145 USD
This product is only available through our Custom Elite Harness Builder Program. (CEHBP)
Email: Support@lljcustoms.com
Text or schedule a call: 602-320-7004

Introducing our Elite Loopback Harness Accessory: The Seamless Solution for Adding a 4+ Channel Amp to Your Speaker System!

Are you looking to upgrade your audio system with a 4+ channel amplifier for your speakers? Our Elite Loopback Harness Accessory is designed specifically for this purpose, eliminating the need to run new wires to each speaker location. With our innovative Loopback Harness, you can utilize your vehicle's factory wiring, saving you valuable time during installation and eliminating the need for cutting or splicing.

Customizable and Convenient: We understand that every audio system setup is unique, which is why our Elite Loopback Harness Accessory can be customized and built to create a full plug and play kit. Let's explore some examples of how our accessory can be tailored to your specific needs:

  1. Link4 for 4-Channel Amps: If you're adding a 4-channel amp that requires a minimum high-level input voltage, our Link4 processor is the ideal choice. It offers 4-channel RCA outputs and a remote turn-on for seamless integration with your amplifier.

  2. Link6 for Speaker and Sub Amps: For a setup with a 4-channel speaker amp and a 2-channel sub amp, our Link6 is the perfect solution. It provides 4-channel RCA outputs for the speaker amp, 2-channel RCA outputs for the sub amp, and remote turn-on signals for both amps.

  3. Amplifier Options for Easy Tuning: We offer a range of amplifier options that are designed for easy tuning and installation. These amplifiers can take high-level inputs and come with built-in processors. For example, our LC5.1300 amplifier can power your doors while offering RCA outputs for a sub or sub amplifier.

Compatibility and Versatility: We understand that customers may have their own preferred equipment. That's why our Elite Loopback Harness Accessory can be wired to your own processor or amp, provided that the input voltage requirements are verified. Additionally, the harness can be customized with wire ferrules or RCA connections to accommodate the specific requirements of your equipment.

Seamless Transition with Elite System: Our Elite Loopback Harness Accessory was designed to seamlessly integrate with our Elite T-Harness system. If you initially started with subs only and used our Elite T-Harness, you can easily upgrade to the Loopback Harness without purchasing an entirely new harness. This flexibility allows you to expand and enhance your sound system with ease.

Upgrade your audio system effortlessly with our Elite Loopback Harness Accessory and enjoy the amplified sound experience you desire!


**This will NOT work for vehicles with a factory amplified system. **

Step 2:

The following are guidelines you can use to optimize your installation and avoid surprises or down time. Please read the information available for your vehicle. Please let us know if you have any questions, Thank you. 😁
GM | GMC | Cadilac | Buick

-None Factory Amplified Vehicles: The BC will connect at the radio or HMI unit that can be located behind the screen on 2014-2018 models or behind the glove box on select 2018-2024 models.

-Factory Amplified with Bose: The Bose factory amplifier has a signal output of 0-36V and will require an LOC or Amplifier capable of high level input, with that voltage range. The Bose amp can be found in the trunk on either the LEFT or RIGHT side, behind the beauty panels in all Sedans & SUV's. It will be located on the back wall in all Pick-ups equipped with Bose. Some crossovers will have the amp under the center console BUT it can also be the ANC mixxer, in that situation your BC will connect behind the glovebox.

-Factory Amplified with Pioneer: Select 2013-2015 vehicles with the Pioneer amplifier will have it under the steering wheel to the left. (Black metal box)

Ford | Lincon

-None Factory Amplified Vehicles: Ford is by far one of the most universal when it comes to parts across their different models. The radio connection can be found behind the screen below the AC controls (CD player/radio unit). This is a 6x6x4 metal box independent of the screen. Keep in mind, that you can use a FORScan to flatten your EQ and/or delete your ANC. If you plan on replacing the factory speakers, keep in mind that load resistors may be needed. ALL LOCs we offer have load resistance built-in. However if going high level into an amp, you will need to add resistors before the amp.

-Factory Amplified with B&O: The B&O amp can be located behind glove box, behind the fuse access panel. Amps will have branding labels.

-Factory Amplified with Sony: The Sony Amp can be found on the back wall, behind the driver side rear seat. Amps will have branding labels.

Dodge | JEEP | RAM | Fiat

-None Factory Amplified Vehicles: Dodge, Jeep, RAM, Fiat are keeping it classic and leaving the radio connection behind the radio screen. If you plan on replacing the factory speakers, keep in mind that load resistors may be needed. ALL LOCs we offer have load resistance built-in. However, if going high level into an amp you will need to add resistors before the amp.

-Factory Amplified with Alpine: The Alpine amplifier can be found under the steering wheel, to the left or under either of the front seats. This amp is small and can be silver or black, depending on if you have the 9 or 12 speaker system. The ANC bypass (copied by PAC/Stinger and sold for more) will also plug in here.

Toyota | Mazda | Subaru | Lexus

Coming March 2023

All done. Thank you for stopping by today!

Below is some information you may find useful.

Are you in Arizona?

We would love to have you stop by our shop and answer any questions you may have on a product or your project! Schedule your visit below :

What Is High Level or Low level?

High level : AKA Speaker level is an amp that can handle an input voltage of 8-40v. This high output is common in factory amplified vehicles or where the
max voltage of a head unit is more then 10v. This is normally identified by a pigtail connection point or via the RCA on the amplifier (must check user manual to verify.) Some amps have a switch for this. NOT all amps have this future.

Low Level : is 0-8v of signal voltage. This is most commonly found inaftermarket head units. or other aftermarket units that use can-bus. Most passive LOC units output 0-5v so they are considered a low level and are normally RCA to RCA. Modern day ACTIVE LOC units can output 0-10v of signal.

In conclusion an LOC works as an in line filter that lest you control the signal, its intercity and in some cases the playable frequency range.

If your amp takes a high level and it is within the vehicles factory output range then you dont need an loc unit and can wire in and out of your amp
directly. In some fords the signal can be flattened at the OB2 furthering the simplification of the installation.

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