If you are interested in a similar setup, 4Crawler Offroad can set you up. If you want just the mounting adapter, sized 2" long, 1/2" center hole (to fit the Metra antenna base) and angled 42 degrees (for the '84-'89 4Runner or '84-'88 4WD pickup), cost is $20.00 + shipping. If you want the antenna as well, modified and ready to install, add $40.00 (subject to availability), ships vis US Priority Mail, for ordering, see: http://4crawler.com/4x4/ForSale/index.shtml#MultipleItemOrders. (11/11)