POWERBOX65.4BMW1: Optisound BMW Plug and Play Amplifier Upgrade

  • Vehicle specific fitment
  • Powerbox 65.4M amplifier and Vehicle Harness
  • BMW Plug and Play amplifier Kit


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This product requires specific tools to fit, we recommend having this product installed by a professional

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Plug and Play BMW Upgrade

Direct Plug and Play amplified sound for your BMW, this provides everything that you need to easily install an amplifier and keep your factory stereo, No Void of Warranty, No loss of function just added volume and enhanced sound quality



  • 4 x 65w @ 4 ohm
  • 520w Peak
  • Dimensions 1.5″” x 7.4″” x 3.2″” (37mm x 187mm x 82mm)
  • Molex to ISO connection included to connect to OEM unit
  • Frequency response: 20Hz – 20kHz
  • Crossover type: HP/Full
  • Crossover range: 50Hz Class D micro amplifier
  • BMW 3-Series E46 2001 2005 Quadlock (Fakra)
  • BMW 5-Series E39 2000 2004 Quadlock (Fakra)
  • BMW Mini R50/R53 2003 2006 Quadlock (Fakra)
  • BMW X3 E83 2004 2010 Quadlock (Fakra)
  • BMW X5 E53 2000 2006 Quadlock (Fakra)
  • BMW Z4 E85/E86 2002 2008 Quadlock (Fakra)
  • BMW Z8 E52 2000 2002 Quadlock (Fakra)



Installing our products is easy. See for yourself in the video below

Click download below to view PDF versions of the manuals for this product

POWERBOX65.4BMW1: Optisound BMW Plug and Play Amplifier Upgrade Manual Download

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Additional information

Weight1.07 kg
Dimensions44 × 9.6 × 4.9 cm

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