It's a rat's nest down there. There are cables coming from the seat-tube, cables coming from the downtube and cables coming from the Yamaha electrical motor, combined with many connectors.
I physically don't have the space to tuck the cables away when reinstalling the electric motor.
Does anyone have any tips?
In the image, both red circles have to align. Perspective might be a little confusing, it is taken facing the bottom of the bottom bracket, with the drive motor pivoted out of the way on a single bolt, held in place by a strap.
Regarding the tie wraps in the picture, the guys who assembled the bike at the Giant assembly line clearly also had issues getting the cables all in there, because they broke two connectors closing it up. Yes I could replace them, but the copper is intact.