Has anyone ever retrofitted this setup on a 1.5 or 1.6? I like the concept! It seems a little pricey. I wonder how much it would be with out the alternator. Is it hard to get the alternator with the "W" terminal? http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33573& item=7909718619