CAC HGM6AK Holden Astra 2016-2020 BK SWC, Camera Retention, USB and Antenna Wiring Harness

CAC HGM6AK Holden Astra 2016-2020 BK SWC, Camera Retention, USB and Antenna Wiring Harness

A comprehensive plug-and-play wiring harness engineered specifically for the Holden Astra BK, retaining steering wheel controls, reverse camera, factory USB, antenna, and air conditioning display in a single solution.

Product Overview

The Car Audio Connect HGM6AK is a feature-rich, vehicle-specific wiring harness built to handle the full complexity of a Holden Astra BK (2016-2020) head unit upgrade. The Astra BK is a modern vehicle with an integrated factory system that controls multiple functions through the OEM head unit, including steering wheel audio controls, reverse camera output, factory USB connectivity, radio antenna, and air conditioning information display. Installing an aftermarket head unit without the correct harness risks losing all of these functions entirely.

The HGM6AK solves this in a single plug-and-play connection, preserving every factory function while allowing you to fit aftermarket head units from Alpine, JVC, Kenwood, Nakamichi, Pioneer, Sony, and other leading brands. Designed for Dash 1 and Dash 2 configurations of the Astra BK, it covers both single and double DIN mounting positions, making it a must-have component for any professional or DIY Holden Astra head unit installation.

Features & Benefits

Steering Wheel Control Retention: Retains the factory steering wheel audio controls so volume, track, and call functions remain fully operational after fitting an aftermarket head unit, maintaining driver safety and convenience without the need for additional SWC interfaces.

Factory Reverse Camera Retention: Preserves the factory reverse camera output and feeds it through to the new head unit, so the reverse camera continues to display when reverse gear is engaged. No need to purchase or install an additional aftermarket camera.

Factory USB Retention: Retains the factory USB port function, keeping the original in-vehicle USB connectivity active and fully usable with the new aftermarket head unit for device charging and data transfer.

Integrated Antenna Adaptor: Includes a factory radio antenna adaptor, eliminating the need to purchase a separate antenna adaptor and ensuring full AM/FM reception performance with the new head unit immediately after installation.

Air Conditioning Information Display: Retains the vehicle's air conditioning information display functionality, allowing A/C status and climate control information to continue appearing on compatible aftermarket head units, a feature unique to modern Holden Astra BK installations.

Technical Specs

Compatible With / Goes Well With

Compatible Holden Vehicles:

Goes Well With:

• Aftermarket head units from Alpine, JVC, Kenwood, Nakamichi, Pioneer, Sony
• Holden Astra BK fascia/dash kits
• SWC patch leads and interface modules
• Aftermarket reverse cameras (as upgrade option)

Frequently Asked Questions

What factory functions does the HGM6AK retain?

The HGM6AK retains five key factory functions for the Holden Astra BK: steering wheel audio controls, factory reverse camera output, factory USB connectivity, radio antenna signal, and air conditioning information display. This makes it one of the most comprehensive plug-and-play harness solutions available for this vehicle, ensuring a clean and fully functional head unit upgrade.

Does the HGM6AK work with both Dash 1 and Dash 2 Astra BK configurations?

Yes. The HGM6AK is confirmed compatible with both Dash 1 and Dash 2 configurations of the Holden Astra BK (2016-2020). If you are unsure which dash configuration your vehicle has, check your existing factory head unit mounting position or consult with a professional installer prior to purchase.

Will the A/C information display work with any aftermarket head unit?

The HGM6AK retains and passes through the A/C information signal, however the display of this information on screen depends on the aftermarket head unit's ability to receive and render it. Most modern Android-based double DIN head units support this function when used with the correct harness. Confirm A/C display compatibility with your chosen head unit brand before purchasing.

Is a separate antenna adaptor needed with the HGM6AK?

No. The HGM6AK includes an integrated factory radio antenna adaptor, so a separate antenna adaptor purchase is not required. This covers both AM and FM reception for compatible aftermarket head units, simplifying the parts list and reducing installation time.

Is professional installation recommended for the HGM6AK?

While the HGM6AK is designed for plug-and-play installation, professional installation by a qualified car audio technician is strongly recommended due to the complexity of the Holden Astra BK's integrated factory system. A professional will ensure correct SWC mapping, camera output verification, A/C display function confirmation, and that all retained factory features are operating correctly after the head unit upgrade.