Welcome to the site!
I don't remember if it's like my II, but if it's similar there's a connector on the bottom of the steering column. From there, you'd need some kind of connector and a schematic.
Pics are worth a thousand words, so if you're able to post pics of what you're working with maybe someone can point you in a good direction. Also, don't forget to post pics of the project and start a build thread if you feel so inclined - lot's of knowledgeable people around these parts that LOVE to see pics!