306 car audio

Hi guys!!

I'm currently replacing my car audio in my 306 with all Alpine euqipment.

However, when it comes to the front door speakers i am stumped.

My simple question is how do you get the speaker cable from the back of the stereo, through the gap between the car and door and down towards the speakers??????

Theres a wiring loom between the car and door, but it seems very stiff and i don't think the wire will pass through there.

Any help would be helpfull!!

Cheers

Matt