I agree, Power Poles are the way to go. A jump start can draw as much as
200 amps (peak) so 150 or better is the way to go. I have one run to the
battery and screwed to the outside of the box on the Syncro where I can
easily get to it and I split my jumper cables about 2 feet from one end
and installed a set there. I can still use the cables normally to start
other vehicles AND use them on the Power Pole connector in the Syncro. 

Shawn
87 Syncro "Eeyore"
86 Westy Weekender