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Aerpro CHMZ12C Steering Wheel Control Interface Suit Mazda Various Models

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Designed to Connect Directly to the Existing Wiring in the Vehicle with Ease!

Steering Wheel Control Interface (SWC)
The Aerpro CHMZ12C Steering Wheel Control Interface (SWC) allows you to upgrade to an aftermarket head unit whilst maintaining the use of your factory steering wheel controls. Engineered to suit various Mazda models without OEM Bose Amplified Audio Systems, the steering wheel control interface includes a harness that is fitted with a vehicle-specific plug designed to connect directly to the existing wiring in the vehicle with ease, no cutting of the factory wiring harness in the vehicle is required.

Installation of the aftermarket head unit is simplified even further when paired with the optional Aerpro APP9 Head Unit Secondary ISO Harness & SWC Patch Lead, which connects the aftermarket head unit and the Aerpro Steering Wheel Control Interface. This interface is CANBUS compatible and provides various outputs including Reverse Trigger, Park Brake, Speed Pulse, Illumination, and Amp Remote.

Please Note:

  • Steering Wheel Control Interfaces vary between models, to find the correct part for your vehicle use the Aerpro Vehicle Selector.
  • A Steering Wheel Control Patch Lead is required to be used in conjunction with this part to enable Steering Wheel Controls to function (Sold Separately).
  • The aftermarket head unit must be SWC compatible and Steering Wheel Control Functions may vary from the OEM Functions.
  • Not compatible with Bose Amplified Audio Systems.


  • Allows you to upgrade to an aftermarket head unit whilst maintaining the use of your factory steering wheel controls
  • Increases driver safety by allowing you to keep your hands on the steering wheel and eyes on the road
  • Not compatible with Bose Amplified Audio Systems
  • CAN-BUS integration compatible, no additional modules required
  • Provides output feeds for the reverse trigger, park brake, speed pulse, illumination, and amp remote
  • Fitted with a vehicle-specific plug, no cutting of wires is required
  • Recommended to be installed with an Aerpro APP9 Headunit Secondary ISO Harness & SWC Patch Lead (Sold Separately)
  • Requires SWC patch lead to provide compatibility with the aftermarket head unit (Sold Separately)


  • Interface Type: CANBUS
  • Patch Lead Type: C
  • Phone Button Compatibility: No
  • Voice Assistant Button Support: No
    Reverse Trigger: Yes (Purple/White)
    Park Brake: Yes (Green)
    Speed Pulse: Yes (Pink)
    Illumination: Yes (Orange)
    Amp Remote: Yes (Blue)
    Telephone Mute: No
  • Other Retention:
    OEM Amplified System: No
  • Packaging Type: Side Blister
  • Weight: 0.10kg

Vehicle Compatibility:

  • Mazda 2 (Demio) 2003 – 2006 DY
  • Mazda 2 (Demio) 2007 – 2014 DE
  • Mazda 3 (Axela) 2004 – 2009 BK
  • Mazda 6 (Atenza) 2002 – 2008 GG, GY
  • Mazda MX5 (Roadster) 2005 – 2008
  • Mazda MX5 (Roadster) 2009 – 2013
  • Mazda RX8 (2008 – 2010)
  • Mazda Tribute (2001 – 2005)

Aerpro CHMZ12C Specs

Weight 0.10 kg

Aerpro: Innovations in Auto Accessories

Aerpro is a brand synonymous with innovation and quality in the automotive accessory industry. Known for its wide range of high-quality products, Aerpro has established itself as a leader in providing solutions that enhance the functionality and aesthetics of vehicles.

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