Expert Service 1-877-289-7664 [Hours]


Did you know that we price match?

It is important that you always get the best price. Call us at 1-877-289-7664 for our best price on this item or check out our coupons page for great deals!

American International FWH-456

Premium Sound Amplifier Interface Harness for Select Ford, Lincoln and Mercury Vehicles

We apologize

This item has been discontinued

Get FAST answers from customers ASK a Question See questions answers

When replacing your factory radio with an after-market car stereo, the FWH-456 wire harness is a must for a quick and clean installation. It eliminates cutting your OE radio plug. After connecting it, your install is simple as the wires will color-match and easily connect to the after-market stereo. Without the FWH-456, you would have to cut the OE radio plug and manually test each wire to connect to your after-market receiver. In addition, because you do not have to cut your OE radio plug off, the FWH-456 allows you to reinstall your factory receiver if necessary. A great example is if you sold your car, but wanted to keep your after-market radio and re-install your factory stereo receiver. We also recommend the Scosche BOBAZT for a quick connection that is sure to last.

Product Features:

  • Hi Level Radio Replacement Bypass Kit for Select 1995-up Ford vehicles
  • Utilizes the high level (speaker)
  • Scosche equivalent: Scosche FDK8B and Metra equivalent: Metra 70-5514

Compatibility List:

  • Ford:
    • 1995 - 1999 Contour Premium Sound
    • 1998 - 1999 Contour SVT Premium Sound
    • 1995 - 1997 Crown Victoria Premium Sound
    • 1995 - 1997 Explorer JBL (Rear tuner)
    • 1997 - 1998 F Series Pickup
    • 1994 - 2000 Mustang Premium Sound
    • 1995 - 1997 Ranger Premium Sound
  • Lincoln:
    • 1995 - 1997 Continental Premium Sound
    • 1995 - 1998 Mark VIII Premium Sound
    • 1995 - 2007 Town Car Premium Sound
  • Mercury:
    • 1995 - 1997 Grand Marquis Premium Sound
    • 1995 - 1999 Mystique Premium Sound

Harness Features

Vehicle Sound System
This refers to what kind of sound system the vehicle has. Premium audio systems are generally name brand systems (such as JBL, Bose, Rockford Fosgate, etc) that have been installed inside a vehicle when it leaves the factory. Often they more advanced systems, complex wiring, factory amplifiers, and other features that can make installing aftermarket component difficult.
Premium Sound
Main Harness Function
Different installations on different vehicles require different harnesses. This type is what the harness is considered. Each wiring harness we sell serves a purpose such as installing an aftermarket car stereo, integrating an aftermarket amplifier with your factory car stereo, connecting Bluetooth to your factory car stereo, and more.
Install a Car Stereo & Bypass the Factory OEM Amplifier
Compatible Vehicle Make
Allows you to view only items that are compatible with your vehicle's make. Does not guarantee that it will work with your vehicle year or model.
Compatible Vehicle Make and Model
The model of vehicle that this vehicle specific product is designed for. Please keep in mind that engine variations can affect the compatibility of the products.
Ford Contour
Ford Crown Victoria
Ford Explorer
Ford F-150
Ford F-250
Ford F-350
Ford F-450
Ford F-550
Ford Mustang
Ford Ranger
Lincoln Continental
Lincoln Mark 8
Lincoln Town Car
Mercury Grand Marquis
Mercury Mystique

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating

Items we think you might want
FDK8B main
Scosche FDK8B

• High Power Head Unit Replacement Kit
• To Bypass Factory Ford JBL / Premium Sound Amplifier

Your Price $4.91

70-5514 main
Metra 70-5514

• Amplifier Eliminator Plug For Select Ford/Lincoln/Mercury Vehicles
• Plugs Into Car Harness
• Plugs Into Amplifier Harness And Into Speaker Inputs

Your Price $12.99

Browse 1 question and 1 answer
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
I have researched why my new radio would not work. Found out that I needed to bypass the factory installed amp in order to power the vehicle speakers from the radio.
Chad R on Sep 12, 2014

Product Summary


Model Number




Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: American International FWH-456