I have asked everyone I know, have searched on-line and have even perused a Mercruiser Smartcraft Service manual. None have answered my questions.

I have a friend who has a 2002 Powerquest 280sc, I installed a Northstar Gps Chartplotter for him a year ago. It has the capability to display smartcraft info. He bought the Northstar adapter cable. We have ascertained that his engines are Smartcraft equipped. There are a bunch of unused connectors hanging off his engine but none labled Smartcraft, most are labled though.

Has anyone added smartcraft to a boat not originally equipped with it? Where do I connect into the engines and what wiring do I need from Merc?

Any help with this would be greatly appreciated.