HMYC Mazda CarPlay retrofit kit hub TK78-66-9U0C

If you want your Mazda to feel more connected day to day, this Mazda CarPlay and Android Auto Retrofit Kit is a practical upgrade path. The HMYC hub kit works with the OEM Mazda Connect system and is designed to bring features like map navigation, contacts, notifications and music support into your driving setup, with voice assistant access for Siri or Google Assistant. It is also built around keeping key in car controls working, so you can operate with less distraction while you drive 🚗.

The essentials

The HMYC Mazda CarPlay and Android Auto Retrofit Kit is built to let you retrofit CarPlay and Android Auto into eligible Mazda models that use the MZD Connect setup. Rather than replacing everything, the kit uses an OEM hub approach so you can extend what your existing system can do. In everyday terms, that often means quicker access to the phone features you rely on, plus navigation on the map and easy access to music, messages and notifications.

Compatibility matters with retrofits, and this kit is specifically linked to the part number TK78-66-9U0C K1414 00008FZ34 and the Mazda Connect system. If you are matching your car to the correct firmware level and model list, the upgrade can feel far more seamless than starting from scratch. For charging while you connect, the kit is described as supporting faster charging around 9 to 12 W when your smartphones are plugged into the hub USB port.

There is also a notable convenience in how it handles driving functions. The kit supports operating using the original rotary controller and original steering wheel controls, so you do not have to take your hands away to reach for the phone. Keep in mind that installation needs a certain level of experience, so planning for a professional fitment can be sensible if you are not familiar with this type of retrofit.

Key features

A big part of this retrofit kit is how it integrates features you use every day into the Mazda Connect experience. According to the product description, you can access navigation maps, phone contacts, emails, notifications and music through CarPlay, alongside voice assistant support such as Siri or Google Assistant. When you connect your iPhone, the kit is also described as offering faster connection speed, which can make start up feel less waiting around.

The hub approach focuses on practical interoperability with your existing Mazda hardware. It is described as compatible with the Mazda navigation map SD card, which matters if your car already uses SD based map storage. It also includes the right OEM hub fit for the stated Mazda Connect system, rather than being a generic accessory intended for a wider range of vehicles.

Another everyday benefit is charging support through the hub USB port, with a stated output range of 9 to 12 W. If your routine includes longer commutes or regular navigation sessions, charging while connected helps keep your phone available for calls, maps and streaming 🔌.

You should also factor in the kit limits and what you do not get. The kit does not include an SD navigation card or any software containing data, so you will need to rely on your existing Mazda navigation media. If you are planning to use Mazda map SD content, check that it is available and compatible with your setup.

Tech specs

• Name: Mazda CarPlay and Android Auto Retrofit Kit, TK78-66-9U0C OEM Hub Fits to MZD Connect System
• Brand: HMYC
• Type: CarPlay adapter hub for Mazda Connect system
• Compatibility: OEM hub fit for Mazda Connect system
• Charging output: 9 to 12 W via USB hub port
• Part number reference: TK78-66-9U0C, K1414 00008FZ34
• Software note: firmware version V70.00.21 or later required for recognition

What to know before buying

Before you install, check the firmware requirement carefully. The product description specifies that your car firmware version should be V70.00.21 or later, otherwise you may need to update firmware first. It also notes that if you are using an earlier CMU system version, CarPlay or Android Auto may not be recognised.

You should also confirm the exact Mazda model and year range for compatibility. The kit is described as compatible with models including CX-3 2014 to 2020, CX-5 2013 to 2016, CX-9 2016 to 2020, Mazda 2 2014 to 2020, Mazda 3 2013 to 2018, Mazda 6 2015 to 2020 and MX-5 2015 to 2020. If your vehicle sits close to the boundaries, double checking with the seller based on your registration details is a sensible step.

A final practical consideration is fitment experience. The product states that installation requires a certain level of experience, so if you are not confident with car electronics work, getting help from a suitable installer can reduce the risk of delays. On the support side, the listing states that professional technical support is available and that there is a 24 month warranty, which can make it easier to plan the upgrade with confidence.