I bought my Q30 in 2018 and am amazed at the level of gadgets that it is fitted with - that is apart from the rear camera which mine does not have. I have bought a kit but really would like to have the camera show up on the screen rather than have to have another screen . Is there the electronic link to interface the camera into the screen?? I assume this would be a video line that is free - does anyone know if this exists on the Business Exec model Q30 1,5 built 2017.???