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Factory System Integration Adapter

1988-up Ford/Lincoln/Mercury/Mazda/Nissan

Save with any car stereo with any car stereo
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Item# 142C4FDK5 offer details

 
Scosche

Our take on the Factory System Integration Adapter

The Scosche OEM Amplifier Adapter is a passive electronic interface package that allows you to integrate a high-powered aftermarket receiver into select 1988-up Ford, Lincoln, Mercury, Mazda, and Nissan vehicles with premium factory systems. The package includes the OEA-4 adapter and a Ford-specific harness. The OEA-4 unit has output-level gain controls for each of its four channels which can be adjusted to properly match the new receiver to the factory amplifier.

Note: If you haven't already, please enter your vehicle information or call a Sales Advisor at 1-888-955-6000 to find out if this adapter is compatible with your vehicle.

Details:
  • 4 speaker-level inputs
  • output level adjustments for all four channels
  • works best with high-powered aftermarket receivers
  • dimensions: 3-15/16"W x 15/16"H x 2-1/16"D
  • 1-year warranty
Get more info on this product

Note: Most vehicles will require additional installation parts — please identify your vehicle if you haven’t done so, then check here for a list of parts. You can also call an Advisor for more information.

 

Hands-on research from the Crutchfield Labs (what are the Labs?)

Product Research

Product Research
What's in the box?

  • OEA-4 OEM Amp interface (with 8-wire input with bare wires/8-wire output with black square connector)
  • Vehicle power wiring adapter (gray rectangular connector w/ 6 wires)
  • Flat-blade screwdriver (attached to interface module)
  • 13 Crimp caps
  • Instruction sheet

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 open the box, verify contents, 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.

Features

Compatibility: The OEA-4 (model C4FDK5B) is a non-electronic interface that allows an aftermarket high-power stereo to integrate into select 1988-2000 Ford, Lincoln, Mercury, Mazda and Nissan vehicles with premium factory systems. Please check the Crutchfield Vehicle Selector for compatibility for your vehicle.

Adjustment Gain Controls: Four rotary gain controls (front left, front right, rear left, rear right) are located recessed inside the adapter chassis. There is a small flat-blade screwdriver attached to the adapter's case, and its use is recommended. The controls are very fragile and sensitive, and a slight adjustment will change volume dramatically.

Harnesses: The adapter's input wires are approximately 5-1/2" long with bare ends. These splice to the new receiver's speaker output wires. The adapter's output wires are approximately 11" long and terminate into a black square Molex plug. There is an additional gray rectangular Molex plug with 6" wires with bare ends (These 6 wires splice to the new receiver's power/ground wires). The two Molex plug ends are molded to match with factory wiring harnesses. Crimp caps are provided for wire splices.

 

Product Reviews

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1-10 of 14 items >> Sort Results By: Date Reviewed | Rating | Helpfulness
 
1 out of 5

Ended up not using it.

Written By , Wenatchee, WA on Tuesday, February 07, 2012
 
The old "Premium Sound System" was inoperative when I got the vehicle, a 1990 Bronco II, so I decided to bypass the whole works and put new speakers and wiring in the vehicle instead.
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5 out of 5

Factory System Integration Adapter

Written By Brandon, va. on Wednesday, July 28, 2010
 
I had no problem installing on my 93 gt. I did'nt go pulling on the wires just installed and played. Everything sounds great plus I can taylor each speaker perfectly. Maybe it will act up later on but anything can. Love it.
Was this review helpful?    Yes | No
 
1 out of 5

NOT worth the money

Written By Richard, Bryan, Ohio on Monday, August 25, 2008
 
I purchased this for my 1994 Ford Ranger Splash. I installed the unit and tried to adjust the gain when the adjuster broke before I could turn the screw. I decided to install without adjusting and the glue that holds the back of the unit on came loose and the back fell open. After these problems I removed the unit and bypassed the factory system.

Crutchfield is known for selling quality, but this does not fit their reputation.
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1 out of 5

You can make it work

Written By LONNY, San Clemente CA on Saturday, April 12, 2008
 
The butt connections were terrible, so the first thing you'll have to do is either recrimp them or solder. I could only get my right side speakers to work so I modified the small square connector and removed the gain adjustment altogether. It all works now. In the end I paid $39.99 +S&H for a connector I had to modify. Semper Fi.
1 out of 2 people found this helpful
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2 out of 5

Miserable little device, but if you need it you need it and it WORKS (

Written By vicefan86, Cleveland, OH on Wednesday, November 14, 2007
 
90% of people will probably purchase this because they have no choice. Either they checked the premium sound option box back in the day or picked up something preowned that just happened to have a premium sound system, and you want to keep all your nifty amps.

No Mach 460 system here like most, just an aging Lincoln Towncar with a suprisingly fantastic factory JBL system with 2 75 watt amps. Bought a new deck (Alpine 9883) mainly to play MP3s, and this little device was the only way I found to ad a new deck and properly communicate with the amps.

Trouble began when I pulled it out of the bag and a crimp came undone. Replaced all the crimps myself, and when I plugged it in only the drivers side speakers worked. Bent the pins (very common problem) and HOLY SMOKES those factory amps gave my alpine a wonderful little jolt. Well worth the money at that point!

If you have time to tinker with it and don't wail on its fragile connections it is a great option for those that want to keep their factory amps.
9 out of 9 people found this helpful
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3 out of 5

Factory System Integration Adapter

Written By stangmasterb, florida on Tuesday, September 25, 2007
 
used it on my 2000 mustang gt with the mach 460 system. it works well but bad workmanship. give a good tug on the butt connectors there will more than likley be a few that come loose. the directions said to hook up the amp lead to the blue wire. that was wrong in my case it needed to be hooked up to the blue & white striped wire instead. the square spaeker plug is very delicate plug it in slow & straight or you will bend the contacts.
7 out of 7 people found this helpful
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2 out of 5

Works, but poor workmanship

Written By Paul, Statesboro, GA on Monday, April 16, 2007
 
The harness plug fit fine in my '95 Nissan Quest (no problems like the 460 owners), and installation seemed to be fine. But just a few days after installation, the left rear speaker sounded terrible. I thought the factory speaker had given up already.

So I bought a full set of speakers, and the problem was still there. I pulled the HU out and found one of the wires had pulled out of it's butt splice. A little disappointing. I decided to pull on the rest of the wires and TWO MORE came out with very little effort!

The adapter works as advertised, but beware of poor workmanship.
3 out of 3 people found this helpful
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4 out of 5

Factory System Integration Adapter

Written By JAMES, Warner Robins, GA USA!!! on Saturday, March 03, 2007
 
I found the adapter to do as advertised. I would recommend that you draw lines on the wires at the plug before you install so you can see which wire or wires push out. The shoddy butt lug connectors make it look less than professional unit a little heat shrink would go a long way.
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1 out of 5

1996 Mustang Mach 460 System (Adaptor does not fit correctly)

Written By fstboater, Alabaster, Alabama on Saturday, September 30, 2006
 
The adaptor on this item does not fit correctly into my Mach 460 adaptor. The pins do not line up, so I was forced to bend the pins to make it fit. I only hope I do not have to remove the system ever because it is almost impossible to plug it back into the adaptor. Also, now that the pins have been bent, I am afraid that they may break due to the stress if I ever take the stereo in and out.

Well, if you don't count the adaptor not fitting (which is a huge pain), then this product seems to work well so far.
5 out of 6 people found this helpful
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2 out of 5

Didn't Need It

Written By Tom, Ormond Beach, Fl on Friday, April 28, 2006
 
Based upon Crutchfield recommendations, I purchased this adapter in order to replace my 2000 Mustang GT's Mach 460
radio and cd player with a JVC KD-AR860 head unit (using the existing OEM amplifiers). The professional installer I used said that the adapter caused additional static and popping noises, and wasn't necessary for the installation. He merely used the JVC wiring harness/pre-outs to connect to the Mach 460 amps. The new unit plays fine, with no apparent (to me, anyway) adverse side effects.
11 out of 11 people found this helpful
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1-10 of 14 items >>

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For a more in-depth review and enhanced detailed information on the Factory System Integration Adapter, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_142C4FDK5/Factory-System-Integration-Adapter.html ).

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Factory System Integration Adapter