Ha. I had practice on my IS250 before and IS200 before that so not as scary once you have done a couple.
I would be happy to oversee you doing it yourself, seen as you are not too far away.
Note, there are 'better' products available, like the Lexion 10" or indeed an Android 10 unit which are also available.
However, I am only interested in adding Apple Carplay to my OEM system so went for this one - which I had tried and tested in my wife's Mercedes too.
Join the RCF Owners page on Facebook, plenty to read through there.