Metra 70-5521 Ford 2003-Up Amp Integration Harness

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Metra 70-5521 Ford 2003-Up Amp Integration Harness

Brand:|Model: 70-5521
Integrate an aftermarket head unit into your OEM premium sound system's amplifiers with Metra's 70-5521 amplifier integration harness for 2003 and up Ford, Lincoln, and Mercury vehicles. Adapts four channels of output.
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Part # 265-6003
  • Four RCA plugs for connection to aftermarket radio
  • For 2003-up Ford, Lincoln, Mercury amplified sound systems
  • Eliminates cutting into factory wiring

Product Details

Metra 70-5521 Ford 2003-Up Amp Integration Harness

The Metra Ford, Lincoln, Mercury amplifier integration harness features four RCA plugs and is designed to allow for aftermarket head unit integration with OEM premium sound systems that use outboard amplifiers. Adapts the line-level audio output from aftermarket head units into the existing sound system. Designed to work with 2003 and up Ford, Lincoln, and Mercury vehicles with an amplified sound system. Eliminates cutting into factory wiring.

Product Specifications
  • TypePremium OE Sound/Amp Integration
Metra 70-5521 Ford 2003-Up Amp Integration Harness
  • BrandMetra
  • Model70-5521
  • Part Number265-6003
  • UPC086429129522
  • Product CategoryRadio Wiring Harnesses
  • Unit of MeasureEA
  • Product Rating
    (2 Reviews)
  • Weight0.23 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the Metra 70-5521 Ford 2003-Up Amp Integration Harness
in the Radio Wiring Harnesses product category.


Metra 70-5521 Ford 2003-Up Amp Integration Harness
Metra 70-5521 Ford 2003-Up Amp Integration Harness is rated 2.0 out of 5 by 2.
Rated 1 out of 5 by from horriblebought this for my 2003 mustang gt and it doesn't fit.
Date published: 2015-01-23
Rated 3 out of 5 by from AMP HARNESS LACKS GROUND WIRESOrdered for a 2004 MUSTANG MAch1 with MACH 460 system. replaced head unit with an Alpine H/U. Main harness was good. The smaller harness for the Mach460 amps was missing TWO BLACK GROUND WIRES. The factory wire harness, from car to head unit, has the two black grounds. With this harness the grounds connect to NOTHING. I had to jump to the main ground from the radio to correct. If I didn't live in Canada I would have returned for a grounded amp harness. The site says this is for 2003 and up Ford Mustang. NO IT IS NOT.
Date published: 2012-10-03
  • 2015-09-04T06:59CST
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  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_2
  • loc_en_US, sid_265-6003, PRD, sort_mostRecent
  • clientName_PartsExpressInternational

Product Q&A

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Metra 70-5521 Ford 2003-Up Amp Integration Harness

I want to replace my Ford Escape 2005, 6cd changer factory unit, would this harness is the adequate?. (My escape also has a factory installed subwoofer). Thanks.

Asked by: DanielAmezquita
Yes this is the kit that you will need for that vehicle.
Answered by: MattP
Date published: 2015-05-14
  • 2015-09-04T08:35CST
  • bvseo_cps, prod_bvqa, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_1
  • loc_en_US, sid_265-6003, PRD, sort_recentQuestionsFirst
  • clientName_PartsExpressInternational
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