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RetroSound MKP646-S Kick Panel Enclosures

Includes a pair of 6-3/4" speakers — fits in 1964-66 Ford Mustang coupe

Item #: 068MKP646S

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Installation gear for most cars

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Great sound in a Mustang

Old Ford Mustangs are cool vehicles but they weren't designed for great sound. It's particularly hard to find a good spot for aftermarket speakers, but now RetroSound offers a neat solution — install their MKP646-S enclosures in your Mustang's kick panels and start rocking out.

6-3/4" speakers in angled enclosures

The package includes two ABS plastic enclosures and a set of RetroSound's R-652N 6-3/4" speakers. Each enclosure holds a RetroSound speaker, angled up toward your ears to create a more powerful stereo image. These speakers will work well with a factory or aftermarket radio, but they handle up to 50 watts RMS so they'll be very happy with an outboard amplifier.

Compact, paintable enclosures

The R652N speakers have a mounting depth of less than 1-3/4", so these enclosures don't take up a lot of space. You can paint the enclosures to match your Ford's interior, and each enclosure already has a cutout for the RetroSound speaker, so they'll just pop right in.

Important Note: These enclosures fit in 1964-66 Ford Mustang coupe; they will not work in Mustang convertibles.

Product Highlights:

  • ABS plastic kick panel enclosures with precut speaker openings
  • includes a pair of R-652N 6-3/4" speakers
  • speakers are angled up for stronger image
  • enclosures can be painted
  • power handling up to 50 watts RMS
  • warranty: 1 year
  • Our 60-day money-back guarantee

RetroSound MKP646-S Kick Panel Enclosures Reviews

Average Customer Review:

2 Reviews

Toe kick panel 65-6 mustang

Written by: ScottM from Massachusetts on June 18, 2014

Crutchfield Customer Review (What's this?)

Ordered tthe toe kick panels with speaker pods to finish up the sound system in my 66 mustang. The panels fit almost perfectly out of the box (a little trimming the overlap at the door sill) and the included speakers sound pretty good once I put some dynamat on the back of the panels. I gave a 4 star rating because the item could be better if offered in color matched paint.

Pros: Lets you place a decent speaker in a normally unused area of your ride with no cutting out doors or panels

Cons: Could be offered in colors, but that is a minor con IMO

Mustang Parts

Written by: Parriba from Electric City, WA on May 9, 2013

1966 Ford Mustang
Crutchfield Customer Review (What's this?)

Hide speakers quite well solid and no vibrations

Pros: Nice looking fit well

Cons: Had to trim a bit

Hands-on research

What's in the box?

Download owner's manual

  • Left kick panel
  • Right kick panel
  • Two 2-way speakers
  • 2 Grilles
  • 2 Grille frames
  • Two 12' Lengths of speaker wire
  • Eight 1-1/8" Self tapping screws
  • 8 Speed clips
  • Owner's manual

Product Research


Kick Panel Brackets: The MKP646 package includes a pair of RetroSound R-652N 6-3/4" speakers and brackets to mount them in the kick panel location of select 1964-1/2 to 1966 Ford Mustang coupes (does not fit in the convertibles). The diameter of the pre-cut openings in the brackets is approximately 5-5/8" and they can be painted to match your interior.

Note: Please confirm compatibility using the Crutchfield Vehicle Selector.

Woofer: The speakers feature rigid pulp composite cone woofers with Santoprene surrounds. The woofers use Neodymium magnets to reduce their depth, so they fit in tight factory locations.

Tweeters: The tweeters are low profile Mylar domes.

Our Product Research Team

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