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Metra

Metra 70-8591 Amp Integration Harness for Select BMW Vehicles

Metra 70-8591 Amp Integration Harness for Select BMW Vehicles

Regular price $20.99 USD
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Review the application and system requirements

Confirm the size, power, connections, and included or separately required parts described on this page.

Metra 70-8591 is a factory amplifier integration wiring harness for select BMW vehicles. It is designed for aftermarket radio installations that need to interface with or bypass the factory amplifier or retained factory system functions.

At a Glance

  • Factory amplifier integration wiring harness for select BMW vehicles
  • Plugs into the vehicle's original radio connectors where compatible
  • Designed for aftermarket radios that are 35 watts or less
  • Includes one 8-pin power plug and one 8-pin speaker plug
  • 12-inch harness length

System / Wiring Notes

  • Designed for compatible BMW factory amplifier integration applications
  • Designed for aftermarket radios that are 35 watts or less
  • Verify the vehicle's factory audio system and radio connector before installation

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.

Make Model Years Factory Equipment / Qualifier
BMW 3 Series 1992-1998 Factory amplified audio system
BMW 3 Series 1999-2001 1 long row of buttons; With factory navigation; Factory amplified audio system
BMW 3 Series 1999-2001 1 long row of buttons; Without factory navigation; Factory amplified audio system
BMW 3 Series 1999-2001 5 separate buttons; With factory navigation; Factory amplified audio system
BMW 3 Series 1999-2001 5 separate buttons; Without factory navigation; Factory amplified audio system
BMW 3 Series 2002-2005 1 long row of buttons; Without factory navigation; Factory amplified audio system
BMW 3 Series 2002-2005 5 separate buttons; Without factory navigation; Factory amplified audio system
BMW 3 Series 2006 conv., coupe (1 row of buttons); Without factory navigation; Factory amplified audio system
BMW 3 Series 2006 conv., coupe (5 sep. buttons); Without factory navigation; Factory amplified audio system
BMW 5 Series 1990-1996 Factory amplified audio system
BMW 5 Series, ALPINA D10 1997-2000 With factory navigation; Factory amplified audio system
BMW 5 Series, ALPINA D10 1997-2000 Without factory navigation; Factory amplified audio system
BMW 7 Series 1990-1998 With factory navigation; Factory amplified audio system
BMW 7 Series 1990-1998 Without factory navigation; Factory amplified audio system
BMW 7 Series 1999-2001 With factory navigation; Factory amplified audio system
BMW 7 Series 1999-2001 Without factory navigation; Factory amplified audio system
BMW M 1998-2002 Factory amplified audio system
BMW M3 1995-1999 Factory amplified audio system
BMW M3 2001 1 long row of buttons; With factory navigation; Factory amplified audio system
BMW M3 2001 1 long row of buttons; Without factory navigation; Factory amplified audio system
BMW M3 2001 5 separate buttons; With factory navigation; Factory amplified audio system
BMW M3 2001 5 separate buttons; Without factory navigation; Factory amplified audio system
BMW M3 2002-2006 1 long row of buttons; Without factory navigation; Factory amplified audio system
BMW M3 2002-2006 5 separate buttons; Without factory navigation; Factory amplified audio system
BMW M5 1991-1993 Factory amplified audio system
BMW Z3 1996-2002 Factory amplified audio system

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 radio connector before installation
  • Retained features and amplifier behavior depend on the vehicle's original equipment and installation setup
  • Additional installation parts may be required depending on the aftermarket radio and vehicle configuration
  • Professional installation is recommended for best results
  • Check the manufacturer's instructions and vehicle fit guide before installation

What's in the Box

  • Amp integration harness

Technical Specifications

  • Brand: Metra
  • Model: 70-8591
  • Product Type: Factory amplifier integration wiring harness
  • Application: select BMW vehicles
  • Compatibility Type: Vehicle-specific
  • Radio Power Limit: Aftermarket radios 35 watts or less
  • Included Plugs: 8-pin power plug and 8-pin speaker plug
  • Harness Length: 12 inches

Identifiers & Packaging

  • MPN: 70-8591
  • UPC: 086429105502
  • Sold As: Each
  • Included Components: Amp 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
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