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  • Custom Made Door Access Block Off Plates - Compatible with 2019-2021 GMC Sierra Chevrolet Silverado 1500 and 2020-2022 HD Trucks
Custom Made Door Access Block Off Plates -Front and Rear Set - Compatible with 2019-2021 GMC Sierra Chevrolet Silverado - Front & Rear Complete Set
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Custom Made Door Access Block Off Plates - Compatible with 2019-2021 GMC Sierra Chevrolet Silverado 1500 and 2020-2022 HD Trucks
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Custom Made Door Access Block Off Plates - Compatible with 2019-2021 GMC Sierra Chevrolet Silverado 1500 and 2020-2022 HD Trucks

Key Features:
  • - Improve your MidBass Performance with these simple plates
  • - Eliminate the "Boomy/Distorted" in your factory system
  • - Creates a "Enclosure" for your speakers inside your door panel
  • - Dramatically Reduces Road Noise for a quieter ride
  • - CNC Machined here at facility out of high-quality HDPE plastic
  • - Sold as a Set


From $99.00 to $207.00




1921GMCBlockOffPlatesSet

Customer Reviews

Based on 79 reviews
87%
(69)
4%
(3)
5%
(4)
1%
(1)
3%
(2)
100.0
100.0
M
Mark Williams (Mansfield, TX, US)
Awesome

Changed the sound of the stock door speakers ... for the better. Can't wait to move on to step two and change out speakers and add amp.

C
Chris Mosentine (Grand Rapids, MI, US)
Wonderful sound

After installing a Kicker Key 200.4 amp (using a SGS harness) I opted to add their block off plates to all four doors. Installation was straight forward but I would recommend a second pair of hands when you drilling of the first couple of screw holes to hold the plate in place. The fit was right on and I have experiences no rattles. I used some weather striping foam as a seal between the plates and the door metal. I also installed some sound deadening mat. The hardest part was figuring out how to release the door latch cable.

User picture
C
Chris Grantham (Memphis, TN, US)
Perfect fit and absolutely necessary imo!

Fit as they should and are very well made. These along with the sound treatment make the doors a much more friendly environment for your speakers.

User picture User picture
M
Max (Madison, WI, US)
Very happy with purchase

After DIYing multiple sets of block off plates I finally decided to spend the money on these. Glad I did as the fit was perfect and install was a breeze.im very happy with my purchase.

J
Justin Sable (Hurricane, WV, US)
Impressive sound enhancement

I ordered these block off plates as a first step to upgrading the factory Bose system in my 2021 Denali HD truck. The difference these made on the stock speakers was extremely impressive. Honestly how the stock stereo should have sounded. The only reason I did not give these 5 stars is the fitment wasn’t very good. The covers did cover the large access holes in the doors but didn’t seem to line up very well with the same proportions as factory. Overall worth the money and the upgrade for sure

User picture User picture User picture
P
PHIL BEAL (Ann Arbor, MI, US)
Works Great!!! Love these plates!

These worked great on a 2024 F-150 Regular Cab, they seem really solid. Can't beat it for the price. Thanks again Sage.

User picture
R
Rand Pi (Phoenix, AZ, US)
Perfect fit, superb product.

All the products I purchased were absolutely perfect in terms of fit and function. I bought these and some speaker adaptors for my Morel 8" drivers. I am a fan of this company. Thanks!

P
Paul

These are awesome would buy again!

J
Jose Zetino (Missouri City, TX, US)
Sounds great

I bought this costume door block off plates, to improve the sound of the speakers and it did.
My surprise was, how solid the doors are closing.
Love it I'll recommend it.

T
T (Montrose, CO, US)
Works well, not enough screws

Product seems to work well but I was 12 screws short

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Product Description

Are you looking to build the ultimate enclosure in your door panel? If so, these block-off access plates will improve your mid-bass performance and deliver the sound you're looking for.

- Hand-made here at our facility just outside of Nashville, TN
- Available for the front doors & rear doors
- Use with sound treatment to ensure the best seal
- Made of high-quality HDPE plastic


May fit other models, contact us for details as we collect this data.

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Customer Reviews

Customer Reviews

Based on 79 reviews
87%
(69)
4%
(3)
5%
(4)
1%
(1)
3%
(2)
100.0
100.0
M
Mark Williams (Mansfield, TX, US)
Awesome

Changed the sound of the stock door speakers ... for the better. Can't wait to move on to step two and change out speakers and add amp.

C
Chris Mosentine (Grand Rapids, MI, US)
Wonderful sound

After installing a Kicker Key 200.4 amp (using a SGS harness) I opted to add their block off plates to all four doors. Installation was straight forward but I would recommend a second pair of hands when you drilling of the first couple of screw holes to hold the plate in place. The fit was right on and I have experiences no rattles. I used some weather striping foam as a seal between the plates and the door metal. I also installed some sound deadening mat. The hardest part was figuring out how to release the door latch cable.

User picture
C
Chris Grantham (Memphis, TN, US)
Perfect fit and absolutely necessary imo!

Fit as they should and are very well made. These along with the sound treatment make the doors a much more friendly environment for your speakers.

User picture User picture
M
Max (Madison, WI, US)
Very happy with purchase

After DIYing multiple sets of block off plates I finally decided to spend the money on these. Glad I did as the fit was perfect and install was a breeze.im very happy with my purchase.

J
Justin Sable (Hurricane, WV, US)
Impressive sound enhancement

I ordered these block off plates as a first step to upgrading the factory Bose system in my 2021 Denali HD truck. The difference these made on the stock speakers was extremely impressive. Honestly how the stock stereo should have sounded. The only reason I did not give these 5 stars is the fitment wasn’t very good. The covers did cover the large access holes in the doors but didn’t seem to line up very well with the same proportions as factory. Overall worth the money and the upgrade for sure

User picture User picture User picture
P
PHIL BEAL (Ann Arbor, MI, US)
Works Great!!! Love these plates!

These worked great on a 2024 F-150 Regular Cab, they seem really solid. Can't beat it for the price. Thanks again Sage.

User picture
R
Rand Pi (Phoenix, AZ, US)
Perfect fit, superb product.

All the products I purchased were absolutely perfect in terms of fit and function. I bought these and some speaker adaptors for my Morel 8" drivers. I am a fan of this company. Thanks!

P
Paul

These are awesome would buy again!

J
Jose Zetino (Missouri City, TX, US)
Sounds great

I bought this costume door block off plates, to improve the sound of the speakers and it did.
My surprise was, how solid the doors are closing.
Love it I'll recommend it.

T
T (Montrose, CO, US)
Works well, not enough screws

Product seems to work well but I was 12 screws short

Load More

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