Volvo: mirrors, door hinge, car frame

Question
What is the best way to thread the wire from the new mirror on the side door(driver) over into the dash, through the door hinge area? Do you know what I mean? I have an 85 240 DL with the electronically adjusted mirrors. I bought them at a recking yard and am trying to replace the old ones that looked ugly.  

Answer
The best way is the route them in the same way as the door speakers.  Drop the wires into the lower door frame, then route them through the flexible rubber tube that joins the door frame to the car frame.  Using long wires to help guide the real wires through helps.