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  5. Crux Car Stereo Installation & Accessories
  6. Crux Wiring Harness to Install a New Car Stereo

Crux Wiring Harness to Install a New Car Stereo for your 2007 X3 close

Easily install a new stereo with Crux's Wiring Harness, ensuring a perfect connection.

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Main Harness Function
Different installations on different vehicles require different harnesses. This type is what the harness is considered. Each wiring harness we sell serves a purpose such as installing an aftermarket car stereo, integrating an aftermarket amplifier with your factory car stereo, connecting Bluetooth to your factory car stereo, and more.

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Crux SWRBM-57K Wiring Interface

Install new car stereo and retains steering wheel audio controls and other factory features in select 1996-2008 vehicles from BMW

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Crux SWRBM-57K Wiring Interface

Install new car stereo and retains steering wheel audio controls and other factory features in select 1996-2008 vehicles from BMW

• Provides 12-Volt accessory power (RAP)
• Designed for non-amplified models
• Micro-B USB Updatable
• Pre-programmed to retain Steering Wheel Controls
• Color coded wires for easy installation
• No cutting or splicing required

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List price $155.40
-36% $99.90

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• Provides 12-Volt accessory power (RAP)
• Designed for non-amplified models
• Micro-B USB Updatable
• Pre-programmed to retain Steering Wheel Controls
• Color coded wires for easy installation
• No cutting or splicing required

 
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    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
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    2007 BMW X3

    2003 Dodge Sprinter

    2004 Hummer H2

    2002 BMW 745i

    2008 Ford Expedition

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    2001 Volvo S60

    1999 Lexus SC400

    2007 Volvo C70

    2003 Audi A4 Quattro

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

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