go with the dontronics cable - you won't regret it. Instructions on the pinout are on the eqmod website. I'll find a link and send it to you.
If you don't want to make your own you can buy one already modified here
http://www.starstuff.com.au/
Here's the pinout:
http://f1.grp.yahoofs.com/v1/sO1SS2r...ct%20Cable.pdf