I ordered a "Joyeauto" Carplay unit from China to ...

I ordered a "Joyeauto" Carplay unit from China to be installed in my Mercedes E-class sedan. I could have tried to do it myself, but so much could go wrong that instead I called a local MB dealer and asked for a recommendation -- who in Memphis could install this unit and make it work without breaking anything? The answer was that there's really only one place in town to trust: Sound Waves. I'm so glad I took that advice -- they did a great job, put everything back together nice and tight, and now my car's stereo and navigation systems interface wirelessly with my iPhone. "Siri: take me to Sound Waves." It works!