Custom Made T-Harness for BOSE - Compatible with 2019-2026 GMC Sierra - Chevrolet Silverado Vehicles
Custom Made T-Harness for BOSE - Compatible with 2019-2026 GMC Sierra - Chevrolet Silverado Vehicles
Custom Made T-Harness for BOSE - Compatible with 2019-2026 GMC Sierra - Chevrolet Silverado Vehicles
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Custom Made T-Harness for BOSE - Compatible with 2019-2026 GMC Sierra - Chevrolet Silverado Vehicles

Key Features:
  • - Hand Crafted in-house by our award winning team
  • - Provides the factory subwoofer signal to feed into a new aftermarket subwoofer amplifier
  • - Connects at the factory BOSE amplifier for a zero splice connection
  • - Made from premium copper wiring along with audiophile grade RCA tips
  • - Available in multiple configurations depending on the amplifier being used (Contact us if unsure)


From $88.00 to $185.00




GMCTHarness-Wire

Customer Reviews

Based on 72 reviews
90%
(65)
4%
(3)
1%
(1)
0%
(0)
4%
(3)
D
DAVID LYNCH (Ormond Beach, FL, US)
GREAT COMPANY AND PRODUCT

USED THIS IN MY 2026 CHEVY 2500 HD ZR2 WITH THE BOSE SYSTEM. PULLED THE BACK SEAT OUT PLUGED THIS INTO THE BOSE AMP PLUGED MY AMP INTO THE RCA FOCAL ADAPTER INCLUDED IN THE HARNESS I PURCHASED. STEREO SHOP GAVE ME A PRICE OF $400 PLUS $499 FOR AN LC2 THAT THE DEMANDED I BUY TO GET THE SYSTEM WORKING CORRECTLEY.
I PAID $185.00 AND DID THE WORK MY SELF SOUNDS AMAZING. HIGHLY RECOMEND TO ANYONE WITH A BOSE SYSTEM BUY THE FULL HARNESS WITH THE RCA FOCAL IT IS TRULEY PLUG AND PLAY.

Z
Zac (Saint Paul, MN, US)
Absolutely worth every penny!!!

Installed on 2020 Silverado Trail Boss with factory Bose audio system. I called to check compatibility for the correct harness when using a Kicker cxa800.1 amp and a DS18 isx12.2 sub and the customer service is the best I had ever experienced. I can’t believe how good the system sounds and how easy the installation was. Thank you Sounds Good Stereo! Y’all are the best!

B
Bryan Humphreys (Woodlake, CA, US)
Great product

Somebody had mentioned on Facebook using your product and I was skeptical at first. The product price point was very good and I felt it was worth the money for not cutting my factory wiring harness to install a Bose 10 inch Hideaway sub under the passenger seat. This harness worked perfectly. I didn’t need to add any wire. Everything was self-explanatory and a very good product and worked as it should. I highly recommend SoundGood and their products. The candy was delicious too.

B
Bill (Intervale, NB, CA)
Chevy Silverado Bose Stereo

Received package in less than a week. Ordered on Monday and received on Friday. From Canada. The service was phenomenal and the product is amazing! Works as advertised! Very happy overall!!
Thanks again!!

D
Daniel Hubbard (Lonoke, AR, US)
Plug and Play

Truely plug and play installation! Installation took me about 20 minutes. Very well-made product and I like the fact if I want to go back stock it's easy peasy!

J
JPL (St Louis, MO, US)
2024 RST W/ Bose

T harness worked flawlessly for my install. Did not want to take off any trim pieces or splice into any of the factory harnesses and this t harness allowed me to avoid doing so. Now, if I ever sell the truck I can remove everything and no one would ever know a aftermarket system was installed. Would definitely recommend this harness!

B
Brian M (New York, NY, US)
T Harness/ RCA ‘19 GMC Sierra w/ Bose

A must have if you’re wanting to add and amp to the Bose system. Makes install so much easier no taping into speaker wire. Sounds Good Stereo were very knowledgeable and shipping was fast and easy ABSOLUTELY would use them again for my next build. 💯 recommend!

G
George Lowe (Little River, SC, US)
Quality Products and Support

Purchased aftermarket electronics from a different company after running into it many obstacles I happen to find sounds good stereo on the web and the product I was looking for to connect my factory stereo to the aftermarket products. I still had many questions and the sounds good stereo team answered every single one and walked me through step-by-step how to connect and dial in all the settings. Keep in mind I did not get this service from the company that I purchased the majority aftermarket stereo parts. Sounds good stereo will be my go to in the future. Thank you for having knowledgeable, supportive, and patient team members to help customers like me.

I
Ismael (San Antonio, TX, US)
Easy plug and play

This is very easy to install. Plug and play no need to cut wires. Very pleased with the purchase. Definitely recommend!

F
Fudge is for sharing. (Saint John, NB, CA)
Perfect fit

Ordered for my 24 AT4 with Bose. Fit perfectly and works perfectly. Was able to use with the GM kicker setup. Very happy. Brought the bass level up just that little bit to compete the package.

Custom-made T-harness for adding an aftermarket subwoofer amplifier to Bose-equipped 2019-2026 GMC Sierra and Chevrolet Silverado trucks. Plugs directly into the factory Bose amplifier — no wire cutting, no signal loss. Choose from speaker wire, RCA, or built-in LOC output based on your amplifier. Hand-built in Nashville, TN.

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Customer Reviews

Based on 72 reviews
90%
(65)
4%
(3)
1%
(1)
0%
(0)
4%
(3)
D
DAVID LYNCH (Ormond Beach, FL, US)
GREAT COMPANY AND PRODUCT

USED THIS IN MY 2026 CHEVY 2500 HD ZR2 WITH THE BOSE SYSTEM. PULLED THE BACK SEAT OUT PLUGED THIS INTO THE BOSE AMP PLUGED MY AMP INTO THE RCA FOCAL ADAPTER INCLUDED IN THE HARNESS I PURCHASED. STEREO SHOP GAVE ME A PRICE OF $400 PLUS $499 FOR AN LC2 THAT THE DEMANDED I BUY TO GET THE SYSTEM WORKING CORRECTLEY.
I PAID $185.00 AND DID THE WORK MY SELF SOUNDS AMAZING. HIGHLY RECOMEND TO ANYONE WITH A BOSE SYSTEM BUY THE FULL HARNESS WITH THE RCA FOCAL IT IS TRULEY PLUG AND PLAY.

Z
Zac (Saint Paul, MN, US)
Absolutely worth every penny!!!

Installed on 2020 Silverado Trail Boss with factory Bose audio system. I called to check compatibility for the correct harness when using a Kicker cxa800.1 amp and a DS18 isx12.2 sub and the customer service is the best I had ever experienced. I can’t believe how good the system sounds and how easy the installation was. Thank you Sounds Good Stereo! Y’all are the best!

B
Bryan Humphreys (Woodlake, CA, US)
Great product

Somebody had mentioned on Facebook using your product and I was skeptical at first. The product price point was very good and I felt it was worth the money for not cutting my factory wiring harness to install a Bose 10 inch Hideaway sub under the passenger seat. This harness worked perfectly. I didn’t need to add any wire. Everything was self-explanatory and a very good product and worked as it should. I highly recommend SoundGood and their products. The candy was delicious too.

B
Bill (Intervale, NB, CA)
Chevy Silverado Bose Stereo

Received package in less than a week. Ordered on Monday and received on Friday. From Canada. The service was phenomenal and the product is amazing! Works as advertised! Very happy overall!!
Thanks again!!

D
Daniel Hubbard (Lonoke, AR, US)
Plug and Play

Truely plug and play installation! Installation took me about 20 minutes. Very well-made product and I like the fact if I want to go back stock it's easy peasy!

J
JPL (St Louis, MO, US)
2024 RST W/ Bose

T harness worked flawlessly for my install. Did not want to take off any trim pieces or splice into any of the factory harnesses and this t harness allowed me to avoid doing so. Now, if I ever sell the truck I can remove everything and no one would ever know a aftermarket system was installed. Would definitely recommend this harness!

B
Brian M (New York, NY, US)
T Harness/ RCA ‘19 GMC Sierra w/ Bose

A must have if you’re wanting to add and amp to the Bose system. Makes install so much easier no taping into speaker wire. Sounds Good Stereo were very knowledgeable and shipping was fast and easy ABSOLUTELY would use them again for my next build. 💯 recommend!

G
George Lowe (Little River, SC, US)
Quality Products and Support

Purchased aftermarket electronics from a different company after running into it many obstacles I happen to find sounds good stereo on the web and the product I was looking for to connect my factory stereo to the aftermarket products. I still had many questions and the sounds good stereo team answered every single one and walked me through step-by-step how to connect and dial in all the settings. Keep in mind I did not get this service from the company that I purchased the majority aftermarket stereo parts. Sounds good stereo will be my go to in the future. Thank you for having knowledgeable, supportive, and patient team members to help customers like me.

I
Ismael (San Antonio, TX, US)
Easy plug and play

This is very easy to install. Plug and play no need to cut wires. Very pleased with the purchase. Definitely recommend!

F
Fudge is for sharing. (Saint John, NB, CA)
Perfect fit

Ordered for my 24 AT4 with Bose. Fit perfectly and works perfectly. Was able to use with the GM kicker setup. Very happy. Brought the bass level up just that little bit to compete the package.

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