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

GM/GMC speaker adapter harness. This speaker harness is ideal for connecting aftermarket speakers to the factory speaker harness in dash, pilers or headrests. They can also be used  in vehicles that use Bose.  This speaker adapter harness is sold in sets of 2,4,6 or 8.

All LLJ products have a 5 year warranty.

Unique

Our designs are not just original they are both cost effective and durable.

Original

We work very hard to be original and design products that look nice but are affordable. Unfortunately some have taken advantage of our designs to over charge.

Because we know you wont need it

But just in case you do its there.

Function meets quality

We believe everything you buy should be an investment. With this in mind me manufacture products you can reuse .to maximize your investment.

Automotive Amp Racks

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Silverado pickup amp rack 2014-2019 12"

LLJ Customs Car Audio Fabrication
$50.00 USD - $60.00 USD
$50.00 USD - $60.00 USD
$50.00 USD - $60.00 USD
$50.00 USD
Out of stock

The Silverado/Sierra Pick-up amp racks are not just the first of their kind ,they are also the best. Our amp racks are designed to fit into place,...

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Silverado pickup amp rack 2014-2019 28"

LLJ Customs Car Audio Fabrication
$100.00 USD - $110.00 USD
$100.00 USD - $110.00 USD
$100.00 USD - $110.00 USD
$100.00 USD
Out of stock

The Silverado/Sierra Pick-up amp racks are not just the first of their kind ,they are also the best. Our amp racks are designed to fit into place,...

View full details
Sold out

Silverado pickup amp rack 2014-2019 37"

LLJ Customs Car Audio Fabrication
$125.00 USD - $135.00 USD
$125.00 USD - $135.00 USD
$125.00 USD - $135.00 USD
$125.00 USD
Out of stock

The Silverado/Sierra Pick-up amp racks are not just the first of their kind ,they are also the best. Our amp racks are designed to fit into place,...

View full details

Automotive Amp Rack 2019-2022 Silverado Sierra rear under seat

LLJ Customs Car Audio Fabrication
$80.00 USD - $80.00 USD
$80.00 USD
$80.00 USD - $80.00 USD
$80.00 USD
In stock

This amp rack is mounted under the rear driver side below the rear seat. It uses the lowering jack equipment holder bolt. This custom cut amp rack ...

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Silverado pickup amp rack 2014-2019 48"

LLJ Customs Car Audio Fabrication
$180.00 USD - $190.00 USD
$180.00 USD - $190.00 USD
$180.00 USD - $190.00 USD
$180.00 USD
Out of stock

The Silverado/Sierra Pick-up amp racks are not just the first of their kind ,they are also the best. Our amp racks are designed to fit into place,...

View full details
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