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Metra

70-5521 METRA Amplifier Integration Radio Wiring Harness Ford/Lincoln/Mercury 1998-2012

70-5521 METRA Amplifier Integration Radio Wiring Harness Ford/Lincoln/Mercury 1998-2012

Regular price $26.99 USD
Regular price Sale price $26.99 USD
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***This item requires 1-3 days additional handling time***

The Metra 70-5521 Amplifier Integration Radio Wiring Harness is designed to retain amplified factory audio while installing an aftermarket radio in select 1998-2012 Ford, Lincoln, and Mercury vehicles. This harness features a direct OEM plug to the factory radio and amplifier connectors and includes color-coded leads and integrated RCA connectors to maintain low level signals for factory subwoofers where equipped. No cutting of the factory harness is required for installation. 

Key Features

  • Amplifier integration wiring harness for select Ford, Lincoln, and Mercury vehicles
  • Direct plug-in connection to factory radio and amplifier harness
  • Includes integrated RCA leads for retaining factory subwoofer signal
  • Color-coded leads match standard aftermarket radio wiring
  • No cutting or splicing into factory harness required

Wiring Notes

  • Designed to retain factory amplified sound systems
  • Includes power harness and 8-pin harness with RCA jacks for retaining factory subwoofer
  • May require additional parts such as dash kits, antenna adapters, or interfaces depending on vehicle and installation needs

Vehicle Compatibility

Brand Models
Ford Crown Victoria 1998-2002
Escape 2004-2007 (with sub, 7-speaker system)
Escape Hybrid 2005-2007
Expedition 2003-2006 (without NAV)
Explorer 2006-2010 (without NAV)
Explorer 2004-2005 (with Audiophile sound)
Explorer Sport Trac 2007-2010
F-150 2004-2008
F-250/350/450/550 2005-2010
F-250/350/450/550 2011-2012 (without NAV)
Five Hundred 2005-2007
Focus 2005-2007
Freestyle 2005-2007
Fusion 2006-2009
Mustang 2004-2007
Mustang 2008 (early build)
Taurus (including X) 2008-2009
Thunderbird 2004-2005
Lincoln Aviator 2004-2005 (without NAV)
LS Series 2003-2006 (without NAV)
Mark LT 2005-2008
Navigator 2003-2006 (without NAV)
Town Car 2003-2011 (without NAV)
Zephyr 2006
Mercury Grand Marquis 2003-2010
Marauder 2003-2004
Mariner 2005-2007 (without NAV)
Milan 2006-2008
Montego 2005-2007
Monterey 2004-2007
Mountaineer 2004-2010
Sable 2008-2009

Installation Notes

Verify vehicle options and factory audio configuration before installation. Additional components such as dash kits, antenna adapters, or interface modules may be required for a complete aftermarket radio installation.

What’s in the Box

  • Metra 70-5521 amplifier integration wiring harness

Why Buy From MCOR Automotive

  • Authorized Metra dealer — genuine OEM harness
  • Fitment and installation guidance available
  • 22+ years of professional automotive electronics experience
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