danigo

If you have the paddles does it still go into manual mode if you nudge the gear change lever to the left?

This is also possibly not helpful as my Karoq version is different from yours (2021 with MIB3 infotainment and parking sensors). I had a rear camera retrofitted using VW Retrofit - they checked my VIN first to make sure they could do it. I'd be more inclined to believe a store that asks for the VIN first before selling you a camera. The different answers might be the difference between original equipment and a third party camera (I got a Skoda genuine camera). If you find someone that says it's possible it might be safer to get it fitted rather than buying the parts and fitting it yourself - you're less likely to end up with parts that don't work in your car.

I have installed a front and rear dashcam (NextBase 522GW) in my Karoq. DAB is still usable but the rear camera definitely makes it more prone to dropping out when the signal is poor - it's fine with front camera only. There's a weak signal area near me, and I can make the signal disappear by plugging in the rear camera - it comes back when I unplug it again. Any Wi-Fi would be generated by the front unit as the rear is wire only to the front camera, so in my case I doubt it's that. At some point I might experiment with different wire paths and/or camera location to see if I can improve it

I think that cable plugs in to the switch on the right hand side so the light turns on when you open the glovebox.