Ok so the P.ANT cable can be left alone because of no use, illumination cable doesn't have to be connected too you say right? Then as far as I know, brake cable doesn't have to be connected in my case because I will set the unit to play video from settings whenever I want so I can leave this cable out too right? And there is the reverse cable which I don't have to connect because I don't have a reverse camera, so overall for me, I only have to connect the 2 steering wheel cables and that's it right? Please correct me if I'm wrong
