Found this hunting around, clever...and they are recycled...that's cool
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=150636932140&viewitem=&sspagename=STRK%3AMESELX%3AIT
That's the way to do it. Buy the kit from Nissan for $850 I think and have a licensed electrician install it. It's real easy. Only a couple of wires. Don't let a contractor B.S. you, Besides everyone has a brother-in-law who's an electrician, right? They just have to be licensed. That and a six...