Contrasting Roof Help

Hello all, Im hoping one of you kind folks could assist me. I have an all black Evoque and am wanting to paint the roof a contrasting Firenze red. However I am unsure where the stock paint line is located(in respect to where the. Body color ends along the door jams and the roof color begins). Could you post a photo of your door jams(the upper part) if you have a contrasting roof? Thanks!

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So you can see the door jam in the photo above(the pillar is the one that divides the front seat and the back. The front door is open in the photo). As you can see, the upper part(roof) joins the door jams and is one piece. So if I were to paint the roof, there'll obviously a line showing where the new roof color begins. How does the stock contrasting roof color solve this?