Top tip: don't let a workshop do proxy alignment to your car if you have the CarPlay module connected or it may be ruined.
Mine was the Integrated Automotive one but as far as I've understood, the Eng-Custom one is quite similar at it's core. Anyway, the proxy alignment will not succeed if the module is connected, as the multimedia system will not be recognized. And in addition – at least in my case it happened – the Carplay module will be bricked aka rendered useless. It does not work anymore. After reconnecting everything as it came from the factory, the proxy alignment went well, but the module itself is dead for good (and stuck on my head unit with some very good double sided tape...).