[Deadcpu]

Hi guys.
I have a European i30 coupe 2013 3 door model that has the stock stereo unit that i have attached as an image at the moment.
It has a microphone on the roof above the driver and also has a rearview camera below the Hyundai badge that lifts as soon as i get into reverse, the camera  shows inside a small display in the rearview mirror as soon as i get into reverse.
I want to upgrade my stereo unit with a generic one with carplay etc.
I got an adapter for the steering wheel controls and an adapter for the cables.
My question is if i can use the microphone and the rear camera of the car somehow because they're good quality.
I think that inside the rearview mirror there's a cable that gives the reverse signal that i can use, and also there are the camera wires inside.

Thanks in advance