Being ..err..mature..I remember a time when a 12 volt element was mounted in a circa 10" long Bakelite housing which had a rubber sucker on each end and a flex to plug it in to an accessory socket, which caused me o think that chances are that there may still be something similar out there..?
12V Car Vehicle Windshield Demister Defroster Heating Cooling Fan-177882 | eBay
