Time to cut the siding and put in the composite trim.

In this short video, I am/have cut the siding to receive the composite trim
I may have said that the piece over the door that I cut down is there to stay, but this will come off and I will put the same size white trim on the top which will make it look uniform.
I will put a drip edge on the top of the white trim to match the rest of the window's trim look and feel.