LLJ System Integration Kit: GX500 Elite 3 foot

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Starting at :

$235 USD
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Adding an aftermarket amplifier to your factory speakers done in minutes. Drive a Ford ,Chevy, Ram, Cadillac, Jeep, or have a factory amplifier ? Our Elite System has the covered. The first of its kind a true solution the redefined the standard of plug and play!  

Our GX500 system aims at completely simplifying the installation of a 4 channel amplifier into your factory system. These harnesses can include an amp that will range in output power ( read below for specs ). This harness will also provide you with a 2 channel RCA out and remote turn on for adding a Sub (mono amplifier) to your system when an LOC is selected. 

Installation Video YouTube

These harnesses will not be available for all vehicles, please check the list below for compatible Vehicles

Rockford PBR 400x4D

-RMS Power Rating:

4 ohms: 45 watts x 4 chan.

2 ohms: 45 watts x 4 chan.

Frequency Response: 10-40,000 Hz

Kicker: Kicker Key


-Some Amps require power from battery!! Optional power kit cut to length and pre-terminated to snap in place. Includes fuse/ fuse holder and all wire needed for proper installation-

Cancelations past 72 hours of the order being placed will be charged a restocking fee!

Shipping Information

Our on-line store is open 24/7 and we ship Monday through Friday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the next business day when received before 12:00 p.m. PST. Orders in high demand will have an estimated production time listed on its product page and will ship according to the date listed.

Lead Times

-In-Stock: product will ship in 2-5 Business days

-Out of Stock: product is not available

-Backordered: product can be ordered but can take 30-90 days. Factors can be: order demand and/or parts availability.

How your signal is delivered Matters !

Audiophile quality signal built with the highest quality materials at the best price! Zero to no resistance means les heat and a better signal.

Best Active Line Output Converter (LOC) :

The best Loc you can get is one that offers the features you NEED at a price that makes sence for what you get. Hands down the best LOC on the market is the Bassrestore from Wavtech! This magic box has everything an LOC should be with the fetures that matter.

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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.