Install Apple CarPlay/Android Auto on BMW F30 Roadtop retrofit detailed guide

Hi thinking about adding apple carplay or android auto to your BMW f series?
Do it, it's easy, I will babysit you step by step in a detailed fashion. If I did it, you could do it.
The kit I used is roadtop, I got it on amazon, let me know if you want a link.
The kit has worked for me almost all the time, only a few times was it glitchy but a restart normally solves the issue.
What I like about this road top kit is that it is the cheapest option that I could find, while other brands are selling the same device for over $600.
The install could take 1.5hrs to 3.5hrs depending on how old your f series is, (newer models can skip a few really fussy steps) and how fluent you are with retrofitting cars. But I promised if you are someone that even took an interest or heard of that you can add carplay to your car, chances are you can probably do it, it's easier than you think, let me walk you through.
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Good Luck Have Fun!
Link for the Carplay box
amzn.to/33dJ6bk