How to add Wireless Apple CarPlay to the GM HMI 2.5 Module
In 2021, I purchased a USB adapter named Carlinkit to enable wireless Apple CarPlay in my car. At that time, it was the only device available on the market for Vauxhall vehicles that supported this feature. Unfortunately, that device did not function properly. I found it inconvenient to plug my phone into the car via USB cable every time I wanted to use Apple CarPlay, so I reverted back to using the car's built-in Bluetooth feature for my phone.
This week, I noticed several wireless Apple CarPlay adapters on Amazon, so I decided to buy two different brands at varying prices to test them out.
Both adapters work exceptionally well with the GM HMI 2.5 system. They connect to my iPhone within four to five seconds after the radio boots up. One of the best features is that my music resumes playing where it left off when I exited the car. Despite the two adapters differences, they share the same Bluetooth name: "Smartbox-XXXX." I suspect these adapters are clones of existing or open-source software created in China. I could only test them with Apple CarPlay, as I do not have an Android phone. Out of the two adapters, I prefer the Aieloar Wireless CarPlay Adapter.
If you're looking for wireless Apple CarPlay for your HMI 2.5 vehicle, I highly recommend checking out these adapters. You won't regret it!
Note: Your vehicle must already have a functioning wired Apple CarPlay feature for these adapters to work.
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Aieloar Wireless CarPlay Adapter. I paid £25.59
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LAMTTO RC21 Wireless CarPlay & Android Auto Wireless Adapter. I paid £13.59. The price is now £19.99
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Tip: To activate Siri voice control, press and hold down the voice/talk button on the steering wheel for a few seconds until you hear a chime.
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