All Classified forums require a Site Supporter subscription. It is only $25 per year and you can buy and sell whatever you like on the forum. To become a Site Supporter, go to Your Profile and select "Paid Subscriptions."
If you want it o look factory start skimming through these. If not then a simple fueled line on the battery will do the trick.http://forum.73-87chevytrucks.com/smforum/index.php?topic=25639.0If you scroll down to wiring you will find what you need.