Duster Rear-Defroster/Defogger?

So, the ones you all have seen or have, are the blower and vent type defrosters? Was wondering if the glass could be ordered thru Siemens (or most local windshield replacers) and then run the wireing yourself? I think the "Web type" defroster would be a better setup. It would actually heat the glass to melt the frost or fog. Thanks for the info. JOE


Also, Brian, The window you were given is definately for a duster,demon, or dart right?