Universal Back Strap

Installation accessory for in-dash receivers, tweeters, and more

Item #: 120BKSTRAP

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24 Reviews

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This metal back strap features multiple mounting holes that make it a perfect for giving extra support to the rear of an aftermarket receiver in certain vehicles. You can also bend this pliable bracket to install tweeters in factory locations, or to help with any other uses your imagination can come up with. Warranty: 30 days.

Universal Back Strap Reviews

Average Customer Review:

24 reviews
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great item

Written By steveg1228, Chesterland, Oh. on Saturday, November 21, 2015

Crutchfield Customer Review (What's this?)

Perfect item for that semi-custom speaker install. I used these to install JBL tweeters in the door of my 2013 Tacoma. I used a vice and hammer to make a custom bend to hold the speaker at the perfect angel.

Pros: inexpensive, great idea to hold speakers

Cons: none

Didn't need

Written By Suburban Sasquatch, Hawaii on Tuesday, October 06, 2015

Crutchfield Customer Review (What's this?)

Purchased these cause they said I'd need them to install the tweeters to my component speakers in the dash as well as some you tube videos however I didn't need them so I will keep them for future projects.

Pros: Universally adaptable.

Cons: Didn't fit my application

Great installation aid

Written By Arkrep, Arkansas on Monday, September 28, 2015

Crutchfield Customer Review (What's this?)

This part made installation of two new tweeters in the factory position a breeze! The metal is soft enough to be bent easily, and the mounting holes are well designed.

Pros: easy to use

Cons: none

Cheaper options

Written By BDR, Texas on Wednesday, September 23, 2015

Crutchfield Customer Review (What's this?)

Not pleased, is simple plumbers tape, was expecting it to be much thicker and less pliable, not worth the $0.99. Buy a roll locally for the same price.

Pros: is good if you don't know what plumbers tape is.

Cons: Is plumbers tape


Written By Steve, California on Monday, August 31, 2015

Crutchfield Customer Review (What's this?)

No Brainer

Works as expected!

Written By telekaster, California on Thursday, July 23, 2015

Crutchfield Customer Review (What's this?)

I used this to mount Focal 1.5" tweeters in place of the factory tweeters in a Subaru Outback. These straps were easy to bend into shape. If you buy these, you probably already know exactly how you're going to use them. They work - period.

Pros: Cheap. easy to Use. Versatile.

Cons: None.

Exactly what I needed

Written By Tracker13, Pennsylvania on Sunday, June 07, 2015

Crutchfield Customer Review (What's this?)

This product was exactly what I needed. Worked like a charm!!!!!

Universal Back Strap

Written By Rich, Virginia on Sunday, May 17, 2015

Crutchfield Customer Review (What's this?)

Used to attach the Crossover to the inside of the door. No other place to put it in my 2006 Colorado. Perfect size and no holes to drill. Just screwed the bar across the opening in the inside of the door then screwed the crossover to it in the hole in the door. No other flat surfaces to hang the crossover on.

Pros: Worked like a charm.

Cons: Had no Idea what it was for when I started.

Great mod piece

Written By Tim, Nebraska on Tuesday, April 21, 2015

Crutchfield Customer Review (What's this?)

Allows you to be creative! Molded to replace 2.5 inch factory "tweeters" with 1"

Pros: Simple

Cons: None it's exactly what it looks like a hunk of metal

helpful metal

Written By perks, Menifee, California on Tuesday, March 10, 2015

Crutchfield Customer Review (What's this?)

These things are awesome. Easily bent to whatever shape you need them. Before you get started however, make sure you have a snipping tool. Scissors won't cut it, you'll need something a little bigger.

Pros: Price, malleable, size

Cons: None

It's a metal strap

Written By chiro, Illinois on Sunday, November 02, 2014

Crutchfield Customer Review (What's this?)

It's a metal strap with holes in it. Useful in attaching stuff, Easy to bend and cut

Good Stuff

Written By excellenceautosolutions, Marble Falls Texas on Sunday, November 02, 2014

Crutchfield Customer Review (What's this?)

These things work great. I am glad the customer support tech recommended them to me. I only had to use a small piece of one so I have one and a half left over for the next job!

Pros: Multiple applications. Great customer service. Great tech support

Cons: I wish I would have known about this item many installations ago.

does the job

Written By pc75, nyc on Monday, September 29, 2014

Crutchfield Customer Review (What's this?)

does what its meant to do. cheap

Pros: cheap

Cons: none

It's a piece of metal

Written By Ben B, Michigan on Sunday, September 14, 2014

Crutchfield Customer Review (What's this?)

What can I say about a piece of metal? I bent it into a makeshift bracket, used a dremel to trim off the excess and used it to mount tweeters into a stock dash location. Can't go wrong with it


Written By Fyrewyre, Talbott, TN on Wednesday, September 10, 2014

Crutchfield Customer Review (What's this?)

The back strap was intended for custom mounting a tweeter. And that is exactly what it did.

Pros: Bend-y, versatile, hole-y

Cons: Fragile.

Just another example of Crutchfield anticipating your every install ne

Written By NorCalBryan, Lakeport Ca on Monday, August 11, 2014

Crutchfield Customer Review (What's this?)

The technical support staff is great! After just a few moments on the phone with one of their highly qualified, helpful staff, and you will have an excellent understanding of what your up against! I had no idea how to install component speakers systems or head units until is like with a Crutchfield rep for five minutes!

They recommended all the right extras and provide so much support!! Thanks Crutchfield!

Pros: Perfect for the job, only a dollar.

Cons: None

Universal Back Strap

Written By Anonymous, Texas on Friday, June 27, 2014

Crutchfield Customer Review (What's this?)

Solid quality.

cheap and easy

Written By 1fatdude, Tampa, FL on Thursday, April 17, 2014

Crutchfield Customer Review (What's this?)

What can I say? Bendable bracket is awesome. Put stuff anywhere.

Extremely Useful

Written By Anonymous, Goose Creek, SC on Sunday, November 10, 2013

Crutchfield Customer Review (What's this?)

I used them to mount component tweeters in my 2004 mustang cobra. The stock tweeter was 3.5" so I used the strap to mount the smaller 1.5" tweeter.

Pros: Handy for a lot of situations

Cons: None

Good quick fix exhaust hangers

Written By Anon, Michigan on Thursday, September 12, 2013

Crutchfield Customer Review (What's this?)

Thought I needed one to get my head unit secured because it was gonna need to get a custom install. Turn out I was wrong but I still made use of it by using it to fix my low hanging muffler lol.

Pros: Can also be used with an Erector set

Cons: You can't really say much negative over a simple piece of metal...

focal Is165 5.25

Written By Anonymous, 45840 on Monday, September 09, 2013

Crutchfield Customer Review (What's this?)

Installed this 5.25 components in my 05 honda accord.I replaced a pair of polk db 6.5 slim that i was not impressed with. The focals sound great.

Great universal mounting bracket

Written By WAC, Honolulu, HI on Thursday, May 30, 2013

Crutchfield Customer Review (What's this?)

Good bracket to hold things in odd mounting locations, its a little thick to cut so I used a Dremel tool to cut

Pros: Very adaptable

Cons: Tough to cut

Can be used for anything

Written By Anonymous, Prospect, CT on Monday, March 11, 2013

Crutchfield Customer Review (What's this?)

Soft metal, can easily be bent / formed to fit any application. I used them for strapping in my headunit as it was a custom fit.

Pros: Bends easily with pliers and.or vice but strong enough to hold speakers, headunits, or whatever you want.

Cons: None.

Great For Theft Protection

Written By GeorgeR, Natchez, MS on Monday, October 31, 2011

Crutchfield Customer Review (What's this?)

It holds my CD Player from bouncing around.

Pros: It's good for theft protection.

Cons: It would have been better if it were longer and had smaller holes, or at least blanks.

Hands-on research

What's in the box?

Download owner's manual

  • Metal universal back strap for aftermarket receiver installation

Product Research


Overview: This is a universal metal back strap that will support the back portion of an aftermarket receiver that is being installed in most vehicles, RV's, trucks, or boats. It has multiple mounting/support holes that attach to the rear support of the receiver. You can then bend the bracket as needed to attach it to any support screw found inside the cavity where the receiver is being installed.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

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