Factory Subwoofer Block Off Plate for Rear Wall (Includes Unleashed) - Required for the 2021-2024 Ford F-150 B&O

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Ford F-150 B&O Subwoofer Block Off Plate (2021-2026)

Key Features:

Seals the factory B&O subwoofer opening in the rear wall behind the seat
Prevents dust, road debris, and exhaust fumes from entering the cab
Pre-marked alignment circles for easy positioning - mounts with 1/8-inch drilled holes
Required when removing factory B&O subwoofer for aftermarket upgrade
Required when removing factory B&O sub for aftermarket subwoofer upgrade
Designed and CNC-machined in Mount Juliet, Tennessee

$55.00

Quantity must be 1 or more

SKU: BOSubPlate

2025 F150 Raptor Fits

Ordered for my 2025 Raptor, the factory sub is mounted closer to the drivers side behind the rear seat, and the compact mounting plate I purchased also for sounds good, wound not fit without removing the factory sub.
It fits a little lose in the factory hole, but seems to work well and will prevent water from coming in.
Thanks again

Perfect Fit

Great fit! Great quality. No water intrusion from car washes/etc. Highly recommend!

Little challenging using a drill to drill the predetermined marked holes in the given space between the rear seat frame and back wall. (Size of my drill is the problem, not the product.)

Perfect!

A must if you’re removing the factory sub from the B&O system. Perfect fit and the provided hardware made the installation a breeze.

Simple and effective

Well, made easy to install. does a great job.

Reverse it!

When I found the block off plate, it looked to be exactly what I needed. When I received it the fit was just what is needed. The flange with the screw holes could be a little wider, as the screw holes you put in the back wall of your pickup are fairly close to the opening. Also, SGS should have put the inscription on the inside of the pickup rather than exposed to the elements and the chassis on the vehicle. I’m just being nit-picky…it’s just what I needed!

Good product

Just what I needed once I figured out how to turn it from a 4 gauge to a 1 gauge, all was good.

Great block-off plate for Ford trucks!

Fit, finish and plate alignment was excellent. Great product to seal up the rectangular hole in the back of the cab, after removing the Ford B&O Unleashed subwoofer. If you remove your factory B&O subwoofer, you'll need a block off plate to seal off the outside elements and road noise - this does the trick perfectly.

Simple but necessary

Like everything else I’ve ordered from SGS, this was of high quality and shipped to my door quickly. Absolutely necessary when removing the factory “infinite baffle” sub.

Perfect Fit

Great product it fit very well and well made
I'm very happy with it I'll recommend it.

The only proper way to eliminate the factory sub

Great fit, but a little expensive for what it is.

Product Description
Fitment Guide
Customer Reviews

Product Description

CNC-machined HDPE block off plate designed to seal the factory B&O subwoofer opening in the rear wall of your 2021+ Ford F-150, Lightning, or 2023+ Super Duty. When you remove the factory Bang & Olufsen subwoofer to install an aftermarket subwoofer system, the opening in the rear wall is left exposed to the exterior - allowing dust, road debris, and exhaust fumes into the cab. This plate seals that opening.

Each plate features pre-marked alignment circles for easy positioning. Drill 1/8-inch mounting holes and secure with the included zinc coated screws.

Single plate - not a pair. Required when removing the factory B&O subwoofer for an aftermarket upgrade.

CNC-machined from solid-core virgin HDPE in Mount Juliet, Tennessee. Ford, F-150, Lightning, Super Duty, and Bang & Olufsen are registered trademarks of their respective owners. Used for compatibility reference only.

Fitment Guide

Customer Reviews

2025 F150 Raptor Fits

Perfect Fit

Great fit! Great quality. No water intrusion from car washes/etc. Highly recommend!

Little challenging using a drill to drill the predetermined marked holes in the given space between the rear seat frame and back wall. (Size of my drill is the problem, not the product.)

Perfect!

A must if you’re removing the factory sub from the B&O system. Perfect fit and the provided hardware made the installation a breeze.

Simple and effective

Well, made easy to install. does a great job.

Reverse it!

Good product

Just what I needed once I figured out how to turn it from a 4 gauge to a 1 gauge, all was good.

Great block-off plate for Ford trucks!

Simple but necessary

Like everything else I’ve ordered from SGS, this was of high quality and shipped to my door quickly. Absolutely necessary when removing the factory “infinite baffle” sub.

Perfect Fit

Great product it fit very well and well made
I'm very happy with it I'll recommend it.

The only proper way to eliminate the factory sub

Great fit, but a little expensive for what it is.

92%

(1325)

(54)

(18)

(12)

(39)

1221

Perfect adapter for my 2025 RR JL and and stealthbox

Item works exactly as advertised and tuned for B and O sub.

Great sound, troublesome fitment

The sound is great and fis nicely under the seat. As for bolting it in a 2014 ford f150 xlt none of the mounts are even close. I had to end up creating my own mounting brackets.

Fit perfect

This fix perfect in my 2014 ford f150 xlt. Great quality!

2025 F150 Raptor fits

Worked great on a 2025 f150 Raptor, mounted perfect behind the drivers side rear seat. Only 2 of the mounts line up on these new trucks as there is a bolt on the way for the third, but it’s holding strong.
Thanks again

Works in 2025 Raptor- with some extension

Love how this was programmed, worked awesome, however lost a star as the new ford trucks have the factory amp mounted to the passanger back wall, and the compact mounting plate I purchased is for the drivers side, the wire included is WAY to short, had to extend the main harness a good 3 feet for it to work properly, not hard, but a pain to do, I thought i was having more issues, but it turns out the amp I had purchased was faulty, an audio control unit, once I replaced the amp everything worked great on my 2025 f150 raptor, tuned well and sounds amazing at first startup. They were super quick to respond to my concerns and worked with me through my issues.
Thanks again, I’ll be a lifelong customer !!

Don’t work

Didn’t work with my Bose amplifier tried to email company about a return and never got a response back

Hi David,

I'm really sorry for the mix-up and for how hard it's been to get ahold of us — that's frustrating and not the experience we want you to have. We're actually open every day, Monday–Friday, 9am–6pm, and you can reach us directly at 615-610-1413.

I went ahead and checked our email and phone systems on my end, and I'm not finding any messages, return requests, or calls from you. I'd like to make sure nothing slipped through the cracks, so please don't hesitate to reach out, and we'll take care of you.

In the meantime, for your vehicle you selected, the 2023 Chevrolet Silverado Crew Cab with BOSE, the harness plugs into the top plug of the factory amplifier. This video shows how to access the amp so you can unplug and re-plug it:

https://www.youtube.com/watch?v=D4ha8UVC-mo

Don

Works, not plug and play

Had to recalibrate the keyloc once installed, and re tune the keyloc. Worked as should after this was done.

Wrong item

This item is wrong for my truck. Can’t get anyone to respond to email

In the meantime, for your vehicle you selected, 2024 GMC Sierra HD Crew Cab with BOSE, the harness plugs into the top plug of the factory amplifier. This video shows how to access the amp so you can unplug and re-plug it:

Holy Smokes....

I had a B&O in a 2020 Ford expedition, traded in for a 2025 F-150 Powerboost XLT. The factory speakers were lame and lacked any bass. I really wanted to retain the under bench seat storage, so I bought this.,....... Wow. It's an absolutely awesome system, that I was skeptical (for no real reason) about. In my ol' days have a pair of 10" subs with 1000W was minimal. Welp. I don't know crap and that was a amateur hour setup. These dual 6.5" subs with a tuned box are 1. Beautifully tucked away. 2. Sound like absolute beats when turned up. 3. Genuinely clear and add great depth to Country, Rock and Rap (Chris Stapleton, Queen, AC/DC, Drake)... You will not be disappointed. Thank you SGS!!!!

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