No, the connector is too tight. You will never be able to route that high quality cable through. I ended up drilling two separate holes (one on door, the other on the car and routed the cables through that
Could you not connect speakers onto original wiring then splice into car side...
In other words you can make a loom from behind stereo that directs from hu to amp then amp to speaker using the cars orignal conectors
I believe that the connector that goes between the door and the car body is not the type that will allow cables to be pushed through. The 'plug' end that we see in the picture contains pins/contacts that are hard wired from behind it.