Metra 70-5603 Amp Integration Harness for Ford Lincoln Mazda Mercury Nissan

Metra 70-5603 is a factory amplifier integration harness for select Ford, Lincoln, Mazda, Mercury, and Nissan vehicles. It supports a cleaner aftermarket radio installation by connecting the new radio or integration wiring to the vehicle-specific factory audio wiring without cutting the original harness where applicable.

At a Glance

• Factory amplifier integration harness for select Ford, Lincoln, Mazda, Mercury, and Nissan vehicles
• Designed to integrate an aftermarket radio with compatible factory amplified audio systems
• Connects to the vehicle’s factory radio wiring without cutting the original connector where applicable
• Color-coded leads connect to the aftermarket radio harness
• Supports cleaner installation when retaining a compatible factory amplifier
• Designed for amplified systems using aftermarket radios rated 35 watts or greater
• Includes one 8-pin power plug and one 8-pin speaker plug
• Harness length: 12 inches

System / Wiring Notes

• Used when installing an aftermarket radio in compatible amplified factory audio systems
• Factory amplifier operation and retained features depend on vehicle trim and factory equipment
• Additional dash kit, antenna adapter, steering wheel control interface, or vehicle retention interface may be required
• Verify radio power output, factory amplifier configuration, and connector style before installation
• Designed for amplified systems using aftermarket radios rated 35 watts or greater where specified by Metra

Exact Vehicle Compatibility

Find your vehicle below, then match the model year and factory-equipment details in the same row. Factory radio, amplifier, navigation, trim, speaker location, and connector differences can change which installation parts are required. If anything differs, contact MCOR before ordering.

Fitment note: Year and model alone are not always enough to confirm compatibility. Match every factory-equipment qualifier shown for your vehicle, and contact MCOR Automotive if the radio, amplifier, navigation, speaker, camera, trim, or connector details are uncertain.

Installation Notes

• Confirm exact vehicle fitment, factory audio system, trim level, and connector style before installation
• Additional installation parts may be required depending on the vehicle and aftermarket radio being installed
• Professional installation is recommended for best results
• Review the manufacturer instructions before installation

What’s in the Box

• Metra 70-5603 amplifier integration harness

Technical Specifications

• Brand: Metra
• Model: 70-5603
• Product Type: Factory amplifier integration harness
• Application: select Ford, Lincoln, Mazda, Mercury, and Nissan vehicles
• Compatibility Type: Vehicle-specific
• Harness Length: 12 inches
• Included Plugs: one 8-pin power plug and one 8-pin speaker plug
• Radio Requirement: aftermarket radio rated 35 watts or greater where specified

Identifiers & Packaging

• MPN: 70-5603
• UPC: 086429088614
• Sold As: Each
• Included Components: Metra 70-5603 amplifier integration harness

Why Buy From MCOR Automotive

• Authorized retailer for the brands we sell
• Specialists in vehicle audio integration, radio replacement parts, and installation accessories
• 22+ years of professional automotive electronics experience
• Expert support for compatibility verification and proper setup